313212301021 has 16 divisors (see below), whose sum is σ = 323962934400. Its totient is φ = 302643177408.

The previous prime is 313212300977. The next prime is 313212301033. The reversal of 313212301021 is 120103212313.

It is a cyclic number.

It is not a de Polignac number, because 313212301021 - 2⁷ = 313212300893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 313212301021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313212301621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20122840 + ... + 20138398.

It is an arithmetic number, because the mean of its divisors is an integer number (20247683400).

Almost surely, 2^313212301021 is an apocalyptic number.

It is an amenable number.

313212301021 is a deficient number, since it is larger than the sum of its proper divisors (10750633379).

313212301021 is a wasteful number, since it uses less digits than its factorization.

313212301021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21348.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 313212301021 its reverse (120103212313), we get a palindrome (433315513334).

The spelling of 313212301021 in words is "three hundred thirteen billion, two hundred twelve million, three hundred one thousand, twenty-one".