312431104 has 20 divisors (see below), whose sum is σ = 624253014. Its totient is φ = 156215296.

The previous prime is 312431089. The next prime is 312431107. The reversal of 312431104 is 401134213.

It can be written as a sum of positive squares in only one way, i.e., 162613504 + 149817600 = 12752^2 + 12240^2 .

It is a super-2 number, since 2×312431104² = 195226389493317632, which contains 22 as substring.

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (312431107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304597 + ... + 305620.

Almost surely, 2^312431104 is an apocalyptic number.

It is an amenable number.

312431104 is a deficient number, since it is larger than the sum of its proper divisors (311821910).

312431104 is an frugal number, since it uses more digits than its factorization.

312431104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610235 (or 610219 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 312431104 is about 17675.7207490954. The cubic root of 312431104 is about 678.5545304791.

Adding to 312431104 its reverse (401134213), we get a palindrome (713565317).

The spelling of 312431104 in words is "three hundred twelve million, four hundred thirty-one thousand, one hundred four".