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131142103340920 = 235723233271322501
BaseRepresentation
bin11101110100010111100110…
…011111000001011101111000
3122012100001200122221101022121
4131310113212133001131320
5114142113011423402140
61142525503420131024
736423463401010210
oct3564274637013570
9565301618841277
10131142103340920
1138871065517441
1212860275096a74
135823855100429
14245545130d240
15102649150864a
hex7745e67c1778

131142103340920 has 256 divisors, whose sum is σ = 354699774074880. Its totient is φ = 42665356800000.

The previous prime is 131142103340893. The next prime is 131142103340921. The reversal of 131142103340920 is 29043301241131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131142103340921) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 406479670 + ... + 406802170.

It is an arithmetic number, because the mean of its divisors is an integer number (1385545992480).

Almost surely, 2131142103340920 is an apocalyptic number.

131142103340920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131142103340920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177349887037440).

131142103340920 is an abundant number, since it is smaller than the sum of its proper divisors (223557670733960).

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

131142103340920 is a wasteful number, since it uses less digits than its factorization.

131142103340920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323046 (or 323042 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The spelling of 131142103340920 in words is "one hundred thirty-one trillion, one hundred forty-two billion, one hundred three million, three hundred forty thousand, nine hundred twenty".