2126111203 has 4 divisors (see below), whose sum is σ = 2155236088. Its totient is φ = 2096986320.

The previous prime is 2126111179. The next prime is 2126111209. The reversal of 2126111203 is 3021116212.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2126111203 - 2²⁵ = 2092556771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2126111209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14562333 + ... + 14562478.

It is an arithmetic number, because the mean of its divisors is an integer number (538809022).

Almost surely, 2^2126111203 is an apocalyptic number.

2126111203 is a deficient number, since it is larger than the sum of its proper divisors (29124885).

2126111203 is an equidigital number, since it uses as much as digits as its factorization.

2126111203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29124884.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 2126111203 is about 46109.7734000071. The cubic root of 2126111203 is about 1285.8648516374.

Adding to 2126111203 its reverse (3021116212), we get a palindrome (5147227415).

The spelling of 2126111203 in words is "two billion, one hundred twenty-six million, one hundred eleven thousand, two hundred three".