312131123404002 has 32 divisors (see below), whose sum is σ = 792713964201600. Its totient is φ = 89180320972464.

The previous prime is 312131123403959. The next prime is 312131123404069. The reversal of 312131123404002 is 200404321131213.

312131123404002 is a `hidden beast` number, since 3 + 1 + 2 + 1 + 311 + 2 + 340 + 4 + 0 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 412871855977 + ... + 412871856732.

It is an arithmetic number, because the mean of its divisors is an integer number (24772311381300).

Almost surely, 2^{312131123404002} is an apocalyptic number.

312131123404002 is an abundant number, since it is smaller than the sum of its proper divisors (480582840797598).

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

312131123404002 is a wasteful number, since it uses less digits than its factorization.

312131123404002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825743712727 (or 825743712721 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 312131123404002 its reverse (200404321131213), we get a palindrome (512535444535215).

The spelling of 312131123404002 in words is "three hundred twelve trillion, one hundred thirty-one billion, one hundred twenty-three million, four hundred four thousand, two".