2120111203 has 16 divisors (see below), whose sum is σ = 2494070784. Its totient is φ = 1764534240.

The previous prime is 2120111183. The next prime is 2120111221. The reversal of 2120111203 is 3021110212.

It is a de Polignac number, because none of the positive numbers 2^k-2120111203 is a prime.

It is a super-2 number, since 2×2120111203² = 8989743026172214418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120111233) 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, 16413 + ... + 67153.

It is an arithmetic number, because the mean of its divisors is an integer number (155879424).

Almost surely, 2^2120111203 is an apocalyptic number.

2120111203 is a deficient number, since it is larger than the sum of its proper divisors (373959581).

2120111203 is a wasteful number, since it uses less digits than its factorization.

2120111203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50922.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2120111203 is about 46044.6653044628. The cubic root of 2120111203 is about 1284.6541187811.

Adding to 2120111203 its reverse (3021110212), we get a palindrome (5141221415).

Subtracting 2120111203 from its reverse (3021110212), we obtain a palindrome (900999009).

The spelling of 2120111203 in words is "two billion, one hundred twenty million, one hundred eleven thousand, two hundred three".