399112042312 has 16 divisors (see below), whose sum is σ = 749237787900. Its totient is φ = 199315298880.

The previous prime is 399112042249. The next prime is 399112042321. The reversal of 399112042312 is 213240211993.

It can be written as a sum of positive squares in 2 ways, for example, as 338474949796 + 60637092516 = 581786^2 + 246246^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30083239 + ... + 30096502.

Almost surely, 2^399112042312 is an apocalyptic number.

It is an amenable number.

399112042312 is a deficient number, since it is larger than the sum of its proper divisors (350125745588).

399112042312 is a wasteful number, since it uses less digits than its factorization.

399112042312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60180576 (or 60180572 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 399112042312 in words is "three hundred ninety-nine billion, one hundred twelve million, forty-two thousand, three hundred twelve".