313215445021 has 8 divisors (see below), whose sum is σ = 326846683584. Its totient is φ = 299585304480.

The previous prime is 313215445019. The next prime is 313215445027. The reversal of 313215445021 is 120544512313.

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

It is a cyclic number.

It is not a de Polignac number, because 313215445021 - 2¹ = 313215445019 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 (313215445027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337470 + ... + 860416.

It is an arithmetic number, because the mean of its divisors is an integer number (40855835448).

Almost surely, 2^313215445021 is an apocalyptic number.

It is an amenable number.

313215445021 is a deficient number, since it is larger than the sum of its proper divisors (13631238563).

313215445021 is a wasteful number, since it uses less digits than its factorization.

313215445021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549011.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 313215445021 its reverse (120544512313), we get a palindrome (433759957334).

The spelling of 313215445021 in words is "three hundred thirteen billion, two hundred fifteen million, four hundred forty-five thousand, twenty-one".