313131011322 has 48 divisors (see below), whose sum is σ = 643916589120. Its totient is φ = 101513233152.

The previous prime is 313131011293. The next prime is 313131011339. The reversal of 313131011322 is 223110131313.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23789379 + ... + 23802537.

It is an arithmetic number, because the mean of its divisors is an integer number (13414928940).

Almost surely, 2^313131011322 is an apocalyptic number.

313131011322 is an abundant number, since it is smaller than the sum of its proper divisors (330785577798).

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

313131011322 is a wasteful number, since it uses less digits than its factorization.

313131011322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16135 (or 16098 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 313131011322 its reverse (223110131313), we get a palindrome (536241142635).

The spelling of 313131011322 in words is "three hundred thirteen billion, one hundred thirty-one million, eleven thousand, three hundred twenty-two".