312431345250 has 64 divisors (see below), whose sum is σ = 779976812160. Its totient is φ = 83299195200.

The previous prime is 312431345243. The next prime is 312431345267. The reversal of 312431345250 is 52543134213.

It is a super-2 number, since 2×312431345250² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4215009 + ... + 4288491.

It is an arithmetic number, because the mean of its divisors is an integer number (12187137690).

Almost surely, 2^312431345250 is an apocalyptic number.

312431345250 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

312431345250 is an abundant number, since it is smaller than the sum of its proper divisors (467545466910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312431345250 is a wasteful number, since it uses less digits than its factorization.

312431345250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79172 (or 79162 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 312431345250 its reverse (52543134213), we get a palindrome (364974479463).

The spelling of 312431345250 in words is "three hundred twelve billion, four hundred thirty-one million, three hundred forty-five thousand, two hundred fifty".