312311022431 has 8 divisors (see below), whose sum is σ = 312631435200. Its totient is φ = 311990706720.

The previous prime is 312311022407. The next prime is 312311022433. The reversal of 312311022431 is 134220113213.

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 312311022431 - 2⁶ = 312311022367 is a prime.

It is a super-2 number, since 2×312311022431² (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 = 312311022397 and 312311022406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312311022433) 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, 7619450 + ... + 7660328.

It is an arithmetic number, because the mean of its divisors is an integer number (39078929400).

Almost surely, 2^312311022431 is an apocalyptic number.

312311022431 is a deficient number, since it is larger than the sum of its proper divisors (320412769).

312311022431 is a wasteful number, since it uses less digits than its factorization.

312311022431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48529.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 312311022431 its reverse (134220113213), we get a palindrome (446531135644).

The spelling of 312311022431 in words is "three hundred twelve billion, three hundred eleven million, twenty-two thousand, four hundred thirty-one".