313251544021 has 16 divisors (see below), whose sum is σ = 357874905024. Its totient is φ = 271625681664.

The previous prime is 313251544019. The next prime is 313251544031. The reversal of 313251544021 is 120445152313.

It is not a de Polignac number, because 313251544021 - 2¹ = 313251544019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313251544031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1239511 + ... + 1470676.

It is an arithmetic number, because the mean of its divisors is an integer number (22367181564).

Almost surely, 2^313251544021 is an apocalyptic number.

It is an amenable number.

313251544021 is a deficient number, since it is larger than the sum of its proper divisors (44623361003).

313251544021 is a wasteful number, since it uses less digits than its factorization.

313251544021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2710740.

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

Adding to 313251544021 its reverse (120445152313), we get a palindrome (433696696334).

The spelling of 313251544021 in words is "three hundred thirteen billion, two hundred fifty-one million, five hundred forty-four thousand, twenty-one".