313013313221 has 8 divisors (see below), whose sum is σ = 357733845120. Its totient is φ = 268293867408.

The previous prime is 313013313209. The next prime is 313013313227. The reversal of 313013313221 is 122313310313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 313013313221 - 2³⁸ = 38135406277 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 (313013313227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487535 + ... + 929363.

It is an arithmetic number, because the mean of its divisors is an integer number (44716730640).

Almost surely, 2^313013313221 is an apocalyptic number.

It is an amenable number.

313013313221 is a deficient number, since it is larger than the sum of its proper divisors (44720531899).

313013313221 is a wasteful number, since it uses less digits than its factorization.

313013313221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543043.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 313013313221 its reverse (122313310313), we get a palindrome (435326623534).

The spelling of 313013313221 in words is "three hundred thirteen billion, thirteen million, three hundred thirteen thousand, two hundred twenty-one".