2120921203 has 16 divisors (see below), whose sum is σ = 2230732800. Its totient is φ = 2013834240.

The previous prime is 2120921167. The next prime is 2120921213. The reversal of 2120921203 is 3021290212.

It is a cyclic number.

It is not a de Polignac number, because 2120921203 - 2¹⁷ = 2120790131 is a prime.

It is a super-4 number, since 4×2120921203⁴ (a number of 38 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120921213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1504563 + ... + 1505971.

It is an arithmetic number, because the mean of its divisors is an integer number (139420800).

Almost surely, 2^2120921203 is an apocalyptic number.

2120921203 is a deficient number, since it is larger than the sum of its proper divisors (109811597).

2120921203 is a wasteful number, since it uses less digits than its factorization.

2120921203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2322.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 2120921203 is about 46053.4602717320. The cubic root of 2120921203 is about 1284.8177009782.

The spelling of 2120921203 in words is "two billion, one hundred twenty million, nine hundred twenty-one thousand, two hundred three".