312130200031 has 16 divisors (see below), whose sum is σ = 336963400704. Its totient is φ = 287415136224.

The previous prime is 312130200013. The next prime is 312130200037. The reversal of 312130200031 is 130002031213.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312130200031 is a prime.

It is a super-2 number, since 2×312130200031² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312130199978 and 312130200014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312130200037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15991180 + ... + 16010686.

It is an arithmetic number, because the mean of its divisors is an integer number (21060212544).

Almost surely, 2^312130200031 is an apocalyptic number.

312130200031 is a deficient number, since it is larger than the sum of its proper divisors (24833200673).

312130200031 is a wasteful number, since it uses less digits than its factorization.

312130200031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22470.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 312130200031 its reverse (130002031213), we get a palindrome (442132231244).

The spelling of 312130200031 in words is "three hundred twelve billion, one hundred thirty million, two hundred thousand, thirty-one".