131312104 has 48 divisors (see below), whose sum is σ = 309304800. Its totient is φ = 51157920.

The previous prime is 131312047. The next prime is 131312147. The reversal of 131312104 is 401213131.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2914 + ... + 16465.

It is an arithmetic number, because the mean of its divisors is an integer number (6443850).

Almost surely, 2^131312104 is an apocalyptic number.

131312104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

131312104 is an abundant number, since it is smaller than the sum of its proper divisors (177992696).

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

131312104 is a wasteful number, since it uses less digits than its factorization.

131312104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19414 (or 19399 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 131312104 is about 11459.1493576094. The cubic root of 131312104 is about 508.2783210437.

Adding to 131312104 its reverse (401213131), we get a palindrome (532525235).

The spelling of 131312104 in words is "one hundred thirty-one million, three hundred twelve thousand, one hundred four".