312120104 has 16 divisors (see below), whose sum is σ = 585712500. Its totient is φ = 155930112.

The previous prime is 312120079. The next prime is 312120131. The reversal of 312120104 is 401021213.

It can be written as a sum of positive squares in 2 ways, for example, as 303108100 + 9012004 = 17410^2 + 3002^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5627 + ... + 25610.

Almost surely, 2^312120104 is an apocalyptic number.

It is an amenable number.

312120104 is a deficient number, since it is larger than the sum of its proper divisors (273592396).

312120104 is a wasteful number, since it uses less digits than its factorization.

312120104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32492 (or 32488 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 312120104 is about 17666.9211805566. The cubic root of 312120104 is about 678.3293069377.

Adding to 312120104 its reverse (401021213), we get a palindrome (713141317).

The spelling of 312120104 in words is "three hundred twelve million, one hundred twenty thousand, one hundred four".