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20200112121112 = 23711191725915253
BaseRepresentation
bin1001001011111001101001…
…00000011110010100011000
32122112010000112201112101221
410211330310200132110120
510121424312200333422
6110543445311221424
74153260416003410
oct445746440362430
978463015645357
1020200112121112
116488901749510
122322b00817874
13b36b298cb861
144db9951a7640
152506b80a63c7
hex125f3481e518

20200112121112 has 64 divisors (see below), whose sum is σ = 49706359315200. Its totient is φ = 7455953888640.

The previous prime is 20200112121071. The next prime is 20200112121181. The reversal of 20200112121112 is 21112121100202.

It is a super-3 number, since 3×202001121211123 (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 862945923 + ... + 862969330.

It is an arithmetic number, because the mean of its divisors is an integer number (776661864300).

Almost surely, 220200112121112 is an apocalyptic number.

20200112121112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20200112121112 is an abundant number, since it is smaller than the sum of its proper divisors (29506247194088).

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

20200112121112 is a wasteful number, since it uses less digits than its factorization.

20200112121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1725915296 (or 1725915292 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20200112121112 its reverse (21112121100202), we get a palindrome (41312233221314).

The spelling of 20200112121112 in words is "twenty trillion, two hundred billion, one hundred twelve million, one hundred twenty-one thousand, one hundred twelve".

Divisors: 1 2 4 7 8 11 14 19 22 28 38 44 56 76 77 88 133 152 154 209 266 308 418 532 616 836 1064 1463 1672 2926 5852 11704 1725915253 3451830506 6903661012 12081406771 13807322024 18985067783 24162813542 32792389807 37970135566 48325627084 65584779614 75940271132 96651254168 131169559228 132895474481 151880542264 229546728649 262339118456 265790948962 360716287877 459093457298 531581897924 721432575754 918186914596 1063163795848 1442865151508 1836373829192 2525014015139 2885730303016 5050028030278 10100056060556 20200112121112