313023013221 has 16 divisors (see below), whose sum is σ = 435555043200. Its totient is φ = 199588361280.

The previous prime is 313023013213. The next prime is 313023013231. The reversal of 313023013221 is 122310320313.

It is not a de Polignac number, because 313023013221 - 2³ = 313023013213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313023013201) 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, 457755 + ... + 914103.

It is an arithmetic number, because the mean of its divisors is an integer number (27222190200).

Almost surely, 2^313023013221 is an apocalyptic number.

It is an amenable number.

313023013221 is a deficient number, since it is larger than the sum of its proper divisors (122532029979).

313023013221 is a wasteful number, since it uses less digits than its factorization.

313023013221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466316.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 313023013221 its reverse (122310320313), we get a palindrome (435333333534).

The spelling of 313023013221 in words is "three hundred thirteen billion, twenty-three million, thirteen thousand, two hundred twenty-one".