312323222031 has 8 divisors (see below), whose sum is σ = 427685853744. Its totient is φ = 202588035840.

The previous prime is 312323222027. The next prime is 312323222041. The reversal of 312323222031 is 130222323213.

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

It is not a de Polignac number, because 312323222031 - 2² = 312323222027 is a prime.

It is a super-2 number, since 2×312323222031² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312323221992 and 312323222010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312323222011) 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, 1406861250 + ... + 1406861471.

It is an arithmetic number, because the mean of its divisors is an integer number (53460731718).

Almost surely, 2^312323222031 is an apocalyptic number.

312323222031 is a deficient number, since it is larger than the sum of its proper divisors (115362631713).

312323222031 is a wasteful number, since it uses less digits than its factorization.

312323222031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2813722761.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 312323222031 its reverse (130222323213), we get a palindrome (442545545244).

The spelling of 312323222031 in words is "three hundred twelve billion, three hundred twenty-three million, two hundred twenty-two thousand, thirty-one".