2115321153 has 24 divisors (see below), whose sum is σ = 3105318048. Its totient is φ = 1279872000.

The previous prime is 2115321149. The next prime is 2115321181. The reversal of 2115321153 is 3511235112.

It is not a de Polignac number, because 2115321153 - 2² = 2115321149 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2115321113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 228138 + ... + 237228.

It is an arithmetic number, because the mean of its divisors is an integer number (129388252).

Almost surely, 2^2115321153 is an apocalyptic number.

It is an amenable number.

2115321153 is a deficient number, since it is larger than the sum of its proper divisors (989996895).

2115321153 is a wasteful number, since it uses less digits than its factorization.

2115321153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9757 (or 9746 counting only the distinct ones).

The product of its digits is 900, while the sum is 24.

The square root of 2115321153 is about 45992.6206363586. The cubic root of 2115321153 is about 1283.6858995036.

Adding to 2115321153 its reverse (3511235112), we get a palindrome (5626556265).

The spelling of 2115321153 in words is "two billion, one hundred fifteen million, three hundred twenty-one thousand, one hundred fifty-three".