2115321504 has 24 divisors (see below), whose sum is σ = 5552719200. Its totient is φ = 705107136.

The previous prime is 2115321499. The next prime is 2115321541. The reversal of 2115321504 is 4051235112.

It is a happy number.

2115321504 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 11017204 + ... + 11017395.

It is an arithmetic number, because the mean of its divisors is an integer number (231363300).

Almost surely, 2^2115321504 is an apocalyptic number.

2115321504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2115321504 is an abundant number, since it is smaller than the sum of its proper divisors (3437397696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2115321504 is a wasteful number, since it uses less digits than its factorization.

2115321504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22034612 (or 22034604 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 2115321504 is about 45992.6244521880. The cubic root of 2115321504 is about 1283.6859705052.

Adding to 2115321504 its reverse (4051235112), we get a palindrome (6166556616).

The spelling of 2115321504 in words is "two billion, one hundred fifteen million, three hundred twenty-one thousand, five hundred four".