312401312 has 24 divisors (see below), whose sum is σ = 615478500. Its totient is φ = 156089344.

The previous prime is 312401279. The next prime is 312401317. The reversal of 312401312 is 213104213.

It can be written as a sum of positive squares in 2 ways, for example, as 305410576 + 6990736 = 17476^2 + 2644^2 .

It is not an unprimeable number, because it can be changed into a prime (312401317) 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, 59864 + ... + 64872.

Almost surely, 2^312401312 is an apocalyptic number.

312401312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

312401312 is a deficient number, since it is larger than the sum of its proper divisors (303077188).

312401312 is a wasteful number, since it uses less digits than its factorization.

312401312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6968 (or 6960 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 312401312 is about 17674.8779910923. The cubic root of 312401312 is about 678.5329618421.

Adding to 312401312 its reverse (213104213), we get a palindrome (525505525).

The spelling of 312401312 in words is "three hundred twelve million, four hundred one thousand, three hundred twelve".