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131202211211204 = 2274685793257543
BaseRepresentation
bin11101110101001111100101…
…001100010110011111000100
3122012112210211200111120021112
4131311033211030112133010
5114144104112032224304
61143013244100304152
736431022050326430
oct3565174514263704
9565483750446245
10131202211211204
11388945aa880aa1
121286ba4b0a2058
135829413cc8493
1424583142419c0
151027d0d467b6e
hex7753e53167c4

131202211211204 has 12 divisors (see below), whose sum is σ = 262404422422464. Its totient is φ = 56229519090504.

The previous prime is 131202211211143. The next prime is 131202211211209. The reversal of 131202211211204 is 402112112202131.

131202211211204 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 131202211211204.

It is not an unprimeable number, because it can be changed into a prime (131202211211209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2342896628744 + ... + 2342896628799.

It is an arithmetic number, because the mean of its divisors is an integer number (21867035201872).

Almost surely, 2131202211211204 is an apocalyptic number.

131202211211204 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

131202211211204 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

131202211211204 is a wasteful number, since it uses less digits than its factorization.

131202211211204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4685793257554 (or 4685793257552 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 131202211211204 its reverse (402112112202131), we get a palindrome (533314323413335).

The spelling of 131202211211204 in words is "one hundred thirty-one trillion, two hundred two billion, two hundred eleven million, two hundred eleven thousand, two hundred four".

Divisors: 1 2 4 7 14 28 4685793257543 9371586515086 18743173030172 32800552802801 65601105605602 131202211211204