312131322130 has 32 divisors (see below), whose sum is σ = 567556657920. Its totient is φ = 123582043200.

The previous prime is 312131322121. The next prime is 312131322229. The reversal of 312131322130 is 31223131213.

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, 3763651 + ... + 3845689.

It is an arithmetic number, because the mean of its divisors is an integer number (17736145560).

Almost surely, 2^312131322130 is an apocalyptic number.

312131322130 is a deficient number, since it is larger than the sum of its proper divisors (255425335790).

312131322130 is a wasteful number, since it uses less digits than its factorization.

312131322130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85914.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 312131322130 its reverse (31223131213), we get a palindrome (343354453343).

The spelling of 312131322130 in words is "three hundred twelve billion, one hundred thirty-one million, three hundred twenty-two thousand, one hundred thirty".