312031431224 has 16 divisors (see below), whose sum is σ = 619474165200. Its totient is φ = 146838320512.

The previous prime is 312031431199. The next prime is 312031431227. The reversal of 312031431224 is 422134130213.

It is a super-2 number, since 2×312031431224² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312031431193 and 312031431202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312031431227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1147174244 + ... + 1147174515.

It is an arithmetic number, because the mean of its divisors is an integer number (38717135325).

Almost surely, 2^312031431224 is an apocalyptic number.

312031431224 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

312031431224 is a deficient number, since it is larger than the sum of its proper divisors (307442733976).

312031431224 is a wasteful number, since it uses less digits than its factorization.

312031431224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2294348782 (or 2294348778 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 312031431224 its reverse (422134130213), we get a palindrome (734165561437).

The spelling of 312031431224 in words is "three hundred twelve billion, thirty-one million, four hundred thirty-one thousand, two hundred twenty-four".