3115323531 has 8 divisors (see below), whose sum is σ = 4615294160. Its totient is φ = 2076882336.

The previous prime is 3115323499. The next prime is 3115323569. The reversal of 3115323531 is 1353235113.

It is not a de Polignac number, because 3115323531 - 2⁵ = 3115323499 is a prime.

It is a super-2 number, since 2×3115323531² = 19410481405604615922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 115382353 = 3115323531 / (3 + 1 + 1 + 5 + 3 + 2 + 3 + 5 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3115323495 and 3115323504.

It is not an unprimeable number, because it can be changed into a prime (3115322531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57691150 + ... + 57691203.

It is an arithmetic number, because the mean of its divisors is an integer number (576911770).

Almost surely, 2^3115323531 is an apocalyptic number.

3115323531 is a deficient number, since it is larger than the sum of its proper divisors (1499970629).

3115323531 is a wasteful number, since it uses less digits than its factorization.

3115323531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115382362 (or 115382356 counting only the distinct ones).

The product of its digits is 4050, while the sum is 27.

The square root of 3115323531 is about 55815.0833646247. The cubic root of 3115323531 is about 1460.4982866341.

Adding to 3115323531 its reverse (1353235113), we get a palindrome (4468558644).

The spelling of 3115323531 in words is "three billion, one hundred fifteen million, three hundred twenty-three thousand, five hundred thirty-one".