312320104 has 8 divisors (see below), whose sum is σ = 585600210. Its totient is φ = 156160048.

The previous prime is 312320093. The next prime is 312320131. The reversal of 312320104 is 401023213.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 312228900 + 91204 = 17670^2 + 302^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19519999 + ... + 19520014.

Almost surely, 2^312320104 is an apocalyptic number.

It is an amenable number.

312320104 is a deficient number, since it is larger than the sum of its proper divisors (273280106).

312320104 is a wasteful number, since it uses less digits than its factorization.

312320104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39040019 (or 39040015 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 312320104 is about 17672.5805699111. The cubic root of 312320104 is about 678.4741623878.

Adding to 312320104 its reverse (401023213), we get a palindrome (713343317).

The spelling of 312320104 in words is "three hundred twelve million, three hundred twenty thousand, one hundred four".