312001113310021 has 4 divisors (see below), whose sum is σ = 312001529670432. Its totient is φ = 312000696949612.

The previous prime is 312001113310013. The next prime is 312001113310031. The reversal of 312001113310021 is 120013311100213.

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 312001113310021 - 2³ = 312001113310013 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 (312001113310031) 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, 207054145 + ... + 208555558.

It is an arithmetic number, because the mean of its divisors is an integer number (78000382417608).

Almost surely, 2^{312001113310021} is an apocalyptic number.

It is an amenable number.

312001113310021 is a deficient number, since it is larger than the sum of its proper divisors (416360411).

312001113310021 is an equidigital number, since it uses as much as digits as its factorization.

312001113310021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416360410.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 312001113310021 its reverse (120013311100213), we get a palindrome (432014424410234).

The spelling of 312001113310021 in words is "three hundred twelve trillion, one billion, one hundred thirteen million, three hundred ten thousand, twenty-one".