2161112304 has 60 divisors (see below), whose sum is σ = 6015557688. Its totient is φ = 664600320.

The previous prime is 2161112299. The next prime is 2161112321. The reversal of 2161112304 is 4032111612.

2161112304 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1160334 + ... + 1162194.

Almost surely, 2^2161112304 is an apocalyptic number.

2161112304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2161112304 is an abundant number, since it is smaller than the sum of its proper divisors (3854445384).

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

2161112304 is an equidigital number, since it uses as much as digits as its factorization.

2161112304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3746 (or 1879 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 2161112304 is about 46487.7651000777. The cubic root of 2161112304 is about 1292.8826635651.

Adding to 2161112304 its reverse (4032111612), we get a palindrome (6193223916).

The spelling of 2161112304 in words is "two billion, one hundred sixty-one million, one hundred twelve thousand, three hundred four".