2115131344 has 20 divisors (see below), whose sum is σ = 4208826724. Its totient is φ = 1028982528.

The previous prime is 2115131339. The next prime is 2115131383. The reversal of 2115131344 is 4431315112.

It can be written as a sum of positive squares in 2 ways, for example, as 1142440000 + 972691344 = 33800^2 + 31188^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1785837 + ... + 1787020.

Almost surely, 2^2115131344 is an apocalyptic number.

It is an amenable number.

2115131344 is a deficient number, since it is larger than the sum of its proper divisors (2093695380).

2115131344 is a wasteful number, since it uses less digits than its factorization.

2115131344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3572902 (or 3572896 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 2115131344 is about 45990.5571177389. The cubic root of 2115131344 is about 1283.6475030605.

Adding to 2115131344 its reverse (4431315112), we get a palindrome (6546446456).

The spelling of 2115131344 in words is "two billion, one hundred fifteen million, one hundred thirty-one thousand, three hundred forty-four".