2121033924 has 60 divisors (see below), whose sum is σ = 5649466284. Its totient is φ = 693665856.

The previous prime is 2121033911. The next prime is 2121033947. The reversal of 2121033924 is 4293301212.

It is a happy number.

2121033924 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 518472900 + 1602561024 = 22770^2 + 40032^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 44587 + ... + 78930.

Almost surely, 2^2121033924 is an apocalyptic number.

It is an amenable number.

2121033924 is an abundant number, since it is smaller than the sum of its proper divisors (3528432360).

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

2121033924 is a wasteful number, since it uses less digits than its factorization.

2121033924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123586 (or 123575 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 2121033924 is about 46054.6840614503. The cubic root of 2121033924 is about 1284.8404620580.

The spelling of 2121033924 in words is "two billion, one hundred twenty-one million, thirty-three thousand, nine hundred twenty-four".