312012012031330 has 32 divisors (see below), whose sum is σ = 604824109869168. Its totient is φ = 115204278067200.

The previous prime is 312012012031309. The next prime is 312012012031361. The reversal of 312012012031330 is 33130210210213.

It can be written as a sum of positive squares in 8 ways, for example, as 70011893370721 + 242000118660609 = 8367311^2 + 15556353^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142998970 + ... + 145164490.

Almost surely, 2^{312012012031330} is an apocalyptic number.

312012012031330 is a deficient number, since it is larger than the sum of its proper divisors (292812097837838).

312012012031330 is a wasteful number, since it uses less digits than its factorization.

312012012031330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3273862.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 312012012031330 its reverse (33130210210213), we get a palindrome (345142222241543).

The spelling of 312012012031330 in words is "three hundred twelve trillion, twelve billion, twelve million, thirty-one thousand, three hundred thirty".