312130230331031 has 16 divisors (see below), whose sum is σ = 357100248479040. Its totient is φ = 267255293495040.

The previous prime is 312130230330953. The next prime is 312130230331121. The reversal of 312130230331031 is 130133032031213.

It is a cyclic number.

It is not a de Polignac number, because 312130230331031 - 2¹⁸ = 312130230068887 is a prime.

It is a super-2 number, since 2×312130230331031² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312130230331331) 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, 40568285 + ... + 47645001.

It is an arithmetic number, because the mean of its divisors is an integer number (22318765529940).

Almost surely, 2^{312130230331031} is an apocalyptic number.

312130230331031 is a deficient number, since it is larger than the sum of its proper divisors (44970018148009).

312130230331031 is a wasteful number, since it uses less digits than its factorization.

312130230331031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7083434.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 312130230331031 its reverse (130133032031213), we get a palindrome (442263262362244).

The spelling of 312130230331031 in words is "three hundred twelve trillion, one hundred thirty billion, two hundred thirty million, three hundred thirty-one thousand, thirty-one".