312012111104 has 36 divisors (see below), whose sum is σ = 623415942660. Its totient is φ = 155853127680.

The previous prime is 312012111097. The next prime is 312012111119. The reversal of 312012111104 is 401111210213.

It can be written as a sum of positive squares in 2 ways, for example, as 205245241600 + 106766869504 = 453040^2 + 326752^2 .

It is a congruent number.

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, 335489 + ... + 858240.

Almost surely, 2^312012111104 is an apocalyptic number.

It is an amenable number.

312012111104 is a deficient number, since it is larger than the sum of its proper divisors (311403831556).

312012111104 is a wasteful number, since it uses less digits than its factorization.

312012111104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194766 (or 1194752 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 312012111104 its reverse (401111210213), we get a palindrome (713123321317).

The spelling of 312012111104 in words is "three hundred twelve billion, twelve million, one hundred eleven thousand, one hundred four".