2315751321 has 16 divisors (see below), whose sum is σ = 3350571840. Its totient is φ = 1414196160.

The previous prime is 2315751289. The next prime is 2315751379. The reversal of 2315751321 is 1231575132.

It is not a de Polignac number, because 2315751321 - 2⁵ = 2315751289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2315751421) 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, 221526 + ... + 231743.

It is an arithmetic number, because the mean of its divisors is an integer number (209410740).

Almost surely, 2^2315751321 is an apocalyptic number.

It is an amenable number.

2315751321 is a deficient number, since it is larger than the sum of its proper divisors (1034820519).

2315751321 is a wasteful number, since it uses less digits than its factorization.

2315751321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453416.

The product of its digits is 6300, while the sum is 30.

The square root of 2315751321 is about 48122.2539060672. The cubic root of 2315751321 is about 1323.0125792298.

The spelling of 2315751321 in words is "two billion, three hundred fifteen million, seven hundred fifty-one thousand, three hundred twenty-one".