313420311221 has 16 divisors (see below), whose sum is σ = 321607499136. Its totient is φ = 305274686976.

The previous prime is 313420311179. The next prime is 313420311223. The reversal of 313420311221 is 122113024313.

It is a cyclic number.

It is not a de Polignac number, because 313420311221 - 2⁶ = 313420311157 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 (313420311223) 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, 68385296 + ... + 68389878.

It is an arithmetic number, because the mean of its divisors is an integer number (20100468696).

Almost surely, 2^313420311221 is an apocalyptic number.

It is an amenable number.

313420311221 is a deficient number, since it is larger than the sum of its proper divisors (8187187915).

313420311221 is a wasteful number, since it uses less digits than its factorization.

313420311221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8732.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 313420311221 its reverse (122113024313), we get a palindrome (435533335534).

The spelling of 313420311221 in words is "three hundred thirteen billion, four hundred twenty million, three hundred eleven thousand, two hundred twenty-one".