312113019973 has 4 divisors (see below), whose sum is σ = 315873417888. Its totient is φ = 308352622060.

The previous prime is 312113019943. The next prime is 312113019979. The reversal of 312113019973 is 379910311213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 312113019973 - 2⁹ = 312113019461 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 (312113019979) 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, 1880198833 + ... + 1880198998.

It is an arithmetic number, because the mean of its divisors is an integer number (78968354472).

Almost surely, 2^312113019973 is an apocalyptic number.

It is an amenable number.

312113019973 is a deficient number, since it is larger than the sum of its proper divisors (3760397915).

312113019973 is an equidigital number, since it uses as much as digits as its factorization.

312113019973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3760397914.

The product of its (nonzero) digits is 30618, while the sum is 40.

The spelling of 312113019973 in words is "three hundred twelve billion, one hundred thirteen million, nineteen thousand, nine hundred seventy-three".