2131115315 has 32 divisors (see below), whose sum is σ = 3029823360. Its totient is φ = 1407974400.

The previous prime is 2131115309. The next prime is 2131115377. The reversal of 2131115315 is 5135111312.

It is not a de Polignac number, because 2131115315 - 2⁸ = 2131115059 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 547175 + ... + 551055.

It is an arithmetic number, because the mean of its divisors is an integer number (94681980).

Almost surely, 2^2131115315 is an apocalyptic number.

2131115315 is a deficient number, since it is larger than the sum of its proper divisors (898708045).

2131115315 is a wasteful number, since it uses less digits than its factorization.

2131115315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4463.

The product of its digits is 450, while the sum is 23.

The square root of 2131115315 is about 46164.0045381680. The cubic root of 2131115315 is about 1286.8728845273.

Adding to 2131115315 its reverse (5135111312), we get a palindrome (7266226627).

The spelling of 2131115315 in words is "two billion, one hundred thirty-one million, one hundred fifteen thousand, three hundred fifteen".