131118791346 has 24 divisors (see below), whose sum is σ = 290135199744. Its totient is φ = 42776343000.

The previous prime is 131118791333. The next prime is 131118791347. The reversal of 131118791346 is 643197811131.

131118791346 is a `hidden beast` number, since 131 + 11 + 87 + 91 + 346 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131118791347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77492530 + ... + 77494221.

It is an arithmetic number, because the mean of its divisors is an integer number (12088966656).

Almost surely, 2^131118791346 is an apocalyptic number.

131118791346 is an abundant number, since it is smaller than the sum of its proper divisors (159016408398).

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

131118791346 is a wasteful number, since it uses less digits than its factorization.

131118791346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154986806 (or 154986803 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The spelling of 131118791346 in words is "one hundred thirty-one billion, one hundred eighteen million, seven hundred ninety-one thousand, three hundred forty-six".