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20211310010020 = 2253331130337291
BaseRepresentation
bin1001001100001110011111…
…11101000001111010100100
32122120011220221112020012011
410212013033331001322210
510122120230330310040
6110552540405004004
74154135050332013
oct446071775017244
978504827466164
1020211310010020
116492628658158
1223251069b3604
13b37bc282161c
144dc33846aa7a
15250b211d43ea
hex1261cff41ea4

20211310010020 has 24 divisors (see below), whose sum is σ = 42445026586368. Its totient is φ = 8084281039200.

The previous prime is 20211310009973. The next prime is 20211310010051. The reversal of 20211310010020 is 2001001311202.

It is a super-2 number, since 2×202113100100202 (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14502426 + ... + 15834865.

It is an arithmetic number, because the mean of its divisors is an integer number (1768542774432).

Almost surely, 220211310010020 is an apocalyptic number.

20211310010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20211310010020 is an abundant number, since it is smaller than the sum of its proper divisors (22233716576348).

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

20211310010020 is a wasteful number, since it uses less digits than its factorization.

20211310010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30370611 (or 30370609 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20211310010020 its reverse (2001001311202), we get a palindrome (22212311321222).

The spelling of 20211310010020 in words is "twenty trillion, two hundred eleven billion, three hundred ten million, ten thousand, twenty".

Divisors: 1 2 4 5 10 20 33311 66622 133244 166555 333110 666220 30337291 60674582 121349164 151686455 303372910 606745820 1010565500501 2021131001002 4042262002004 5052827502505 10105655005010 20211310010020