131131312404 has 48 divisors (see below), whose sum is σ = 328409480448. Its totient is φ = 40575679488.

The previous prime is 131131312379. The next prime is 131131312439. The reversal of 131131312404 is 404213131131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4387852 + ... + 4417635.

It is an arithmetic number, because the mean of its divisors is an integer number (6841864176).

Almost surely, 2^131131312404 is an apocalyptic number.

It is an amenable number.

131131312404 is an abundant number, since it is smaller than the sum of its proper divisors (197278168044).

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

131131312404 is a wasteful number, since it uses less digits than its factorization.

131131312404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8805584 (or 8805582 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 131131312404 its reverse (404213131131), we get a palindrome (535344443535).

The spelling of 131131312404 in words is "one hundred thirty-one billion, one hundred thirty-one million, three hundred twelve thousand, four hundred four".