131423165120 has 112 divisors (see below), whose sum is σ = 348646455360. Its totient is φ = 46852141056.

The previous prime is 131423165119. The next prime is 131423165131. The reversal of 131423165120 is 21561324131.

It is a super-2 number, since 2×131423165120² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 424052 + ... + 665331.

It is an arithmetic number, because the mean of its divisors is an integer number (3112914780).

Almost surely, 2^131423165120 is an apocalyptic number.

131423165120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131423165120 is an abundant number, since it is smaller than the sum of its proper divisors (217223290240).

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

131423165120 is a wasteful number, since it uses less digits than its factorization.

131423165120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089442 (or 1089432 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 131423165120 its reverse (21561324131), we get a palindrome (152984489251).

The spelling of 131423165120 in words is "one hundred thirty-one billion, four hundred twenty-three million, one hundred sixty-five thousand, one hundred twenty".