3131204312404 has 48 divisors (see below), whose sum is σ = 6323816052736. Its totient is φ = 1328788476000.

The previous prime is 3131204312399. The next prime is 3131204312417. The reversal of 3131204312404 is 4042134021313.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 33785929 + ... + 33878479.

Almost surely, 2^{3131204312404} is an apocalyptic number.

It is an amenable number.

3131204312404 is an abundant number, since it is smaller than the sum of its proper divisors (3192611740332).

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

3131204312404 is a wasteful number, since it uses less digits than its factorization.

3131204312404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104396 (or 104394 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 3131204312404 its reverse (4042134021313), we get a palindrome (7173338333717).

The spelling of 3131204312404 in words is "three trillion, one hundred thirty-one billion, two hundred four million, three hundred twelve thousand, four hundred four".