312213310031 has 8 divisors (see below), whose sum is σ = 357843500160. Its totient is φ = 266840192088.

The previous prime is 312213310027. The next prime is 312213310039. The reversal of 312213310031 is 130013312213.

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 312213310031 - 2² = 312213310027 is a prime.

It is a super-2 number, since 2×312213310031² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312213309985 and 312213310012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312213310039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64265441 + ... + 64270298.

It is an arithmetic number, because the mean of its divisors is an integer number (44730437520).

Almost surely, 2^312213310031 is an apocalyptic number.

312213310031 is a deficient number, since it is larger than the sum of its proper divisors (45630190129).

312213310031 is a wasteful number, since it uses less digits than its factorization.

312213310031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128536093.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 312213310031 its reverse (130013312213), we get a palindrome (442226622244).

The spelling of 312213310031 in words is "three hundred twelve billion, two hundred thirteen million, three hundred ten thousand, thirty-one".