313221123320 has 128 divisors (see below), whose sum is σ = 897688396800. Its totient is φ = 95753373696.

The previous prime is 313221123311. The next prime is 313221123343. The reversal of 313221123320 is 23321122313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1641212 + ... + 1822091.

It is an arithmetic number, because the mean of its divisors is an integer number (7013190600).

Almost surely, 2^313221123320 is an apocalyptic number.

It is an amenable number.

313221123320 is an abundant number, since it is smaller than the sum of its proper divisors (584467273480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

313221123320 is a wasteful number, since it uses less digits than its factorization.

313221123320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3463357 (or 3463353 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 313221123320 its reverse (23321122313), we get a palindrome (336542245633).

The spelling of 313221123320 in words is "three hundred thirteen billion, two hundred twenty-one million, one hundred twenty-three thousand, three hundred twenty".