312023213031 has 8 divisors (see below), whose sum is σ = 430376845680. Its totient is φ = 200842527872.

The previous prime is 312023213023. The next prime is 312023213039. The reversal of 312023213031 is 130312320213.

It is an interprime number because it is at equal distance from previous prime (312023213023) and next prime (312023213039).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 312023213031 - 2³ = 312023213023 is a prime.

It is a super-2 number, since 2×312023213031² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312023212989 and 312023213007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312023213039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1793236770 + ... + 1793236943.

It is an arithmetic number, because the mean of its divisors is an integer number (53797105710).

Almost surely, 2^312023213031 is an apocalyptic number.

312023213031 is a deficient number, since it is larger than the sum of its proper divisors (118353632649).

312023213031 is a wasteful number, since it uses less digits than its factorization.

312023213031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3586473745.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 312023213031 its reverse (130312320213), we get a palindrome (442335533244).

The spelling of 312023213031 in words is "three hundred twelve billion, twenty-three million, two hundred thirteen thousand, thirty-one".