313013012122 has 4 divisors (see below), whose sum is σ = 469519518186. Its totient is φ = 156506506060.

The previous prime is 313013012077. The next prime is 313013012153. The reversal of 313013012122 is 221210310313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221210310313 = 131 ⋅1688628323.

It can be written as a sum of positive squares in only one way, i.e., 215313632361 + 97699379761 = 464019^2 + 312569^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 313013012122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78253253029 + ... + 78253253032.

Almost surely, 2^313013012122 is an apocalyptic number.

313013012122 is a deficient number, since it is larger than the sum of its proper divisors (156506506064).

313013012122 is a wasteful number, since it uses less digits than its factorization.

313013012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156506506063.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 313013012122 its reverse (221210310313), we get a palindrome (534223322435).

The spelling of 313013012122 in words is "three hundred thirteen billion, thirteen million, twelve thousand, one hundred twenty-two".