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20123013000120 = 2335509329453389
BaseRepresentation
bin1001001001101010000010…
…00010101010101110111000
32122020202000101010101022020
410210311001002222232320
510114143412312000440
6110444215021354440
74144561010203122
oct444650102525670
978222011111266
1020123013000120
1164591382617a8
12230bb84408a20
13b2c7907848c4
144d7d5d7d2212
1524d6a45ec3d0
hex124d410aabb8

20123013000120 has 64 divisors (see below), whose sum is σ = 60487642404000. Its totient is φ = 5355594275328.

The previous prime is 20123013000113. The next prime is 20123013000137. The reversal of 20123013000120 is 2100031032102.

It is a super-4 number, since 4×201230130001204 (a number of 54 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20123013000120.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164665615 + ... + 164787774.

Almost surely, 220123013000120 is an apocalyptic number.

20123013000120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20123013000120 is an abundant number, since it is smaller than the sum of its proper divisors (40364629403880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20123013000120 is a wasteful number, since it uses less digits than its factorization.

20123013000120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329453912 (or 329453908 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20123013000120 its reverse (2100031032102), we get a palindrome (22223044032222).

The spelling of 20123013000120 in words is "twenty trillion, one hundred twenty-three billion, thirteen million, one hundred twenty", and thus it is an aban number.

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 509 1018 1527 2036 2545 3054 4072 5090 6108 7635 10180 12216 15270 20360 30540 61080 329453389 658906778 988360167 1317813556 1647266945 1976720334 2635627112 3294533890 3953440668 4941800835 6589067780 7906881336 9883601670 13178135560 19767203340 39534406680 167691775001 335383550002 503075325003 670767100004 838458875005 1006150650006 1341534200008 1676917750010 2012301300012 2515376625015 3353835500020 4024602600024 5030753250030 6707671000040 10061506500060 20123013000120