313113133312021 has 32 divisors (see below), whose sum is σ = 373875334709760. Its totient is φ = 256388596214784.

The previous prime is 313113133312019. The next prime is 313113133312097. The reversal of 313113133312021 is 120213331311313.

It is a happy number.

It is not a de Polignac number, because 313113133312021 - 2¹ = 313113133312019 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 (313113133312121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 585725985 + ... + 586260313.

It is an arithmetic number, because the mean of its divisors is an integer number (11683604209680).

Almost surely, 2^{313113133312021} is an apocalyptic number.

It is an amenable number.

313113133312021 is a deficient number, since it is larger than the sum of its proper divisors (60762201397739).

313113133312021 is a wasteful number, since it uses less digits than its factorization.

313113133312021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538965.

The product of its (nonzero) digits is 2916, while the sum is 28.

Adding to 313113133312021 its reverse (120213331311313), we get a palindrome (433326464623334).

The spelling of 313113133312021 in words is "three hundred thirteen trillion, one hundred thirteen billion, one hundred thirty-three million, three hundred twelve thousand, twenty-one".