312131132002 has 16 divisors (see below), whose sum is σ = 468883612512. Its totient is φ = 155836749600.

The previous prime is 312131131969. The next prime is 312131132021. The reversal of 312131132002 is 200231131213.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4152033 + ... + 4226539.

It is an arithmetic number, because the mean of its divisors is an integer number (29305225782).

Almost surely, 2^312131132002 is an apocalyptic number.

312131132002 is a deficient number, since it is larger than the sum of its proper divisors (156752480510).

312131132002 is a wasteful number, since it uses less digits than its factorization.

312131132002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77553.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 312131132002 its reverse (200231131213), we get a palindrome (512362263215).

The spelling of 312131132002 in words is "three hundred twelve billion, one hundred thirty-one million, one hundred thirty-two thousand, two".