312012329999 has 4 divisors (see below), whose sum is σ = 312025613160. Its totient is φ = 311999046840.

The previous prime is 312012329987. The next prime is 312012330053. The reversal of 312012329999 is 999923210213.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 312012329999 - 2⁴ = 312012329983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312012320999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6606284 + ... + 6653345.

It is an arithmetic number, because the mean of its divisors is an integer number (78006403290).

Almost surely, 2^312012329999 is an apocalyptic number.

312012329999 is a deficient number, since it is larger than the sum of its proper divisors (13283161).

312012329999 is a wasteful number, since it uses less digits than its factorization.

312012329999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13283160.

The product of its (nonzero) digits is 472392, while the sum is 50.

The spelling of 312012329999 in words is "three hundred twelve billion, twelve million, three hundred twenty-nine thousand, nine hundred ninety-nine".