811372203 has 12 divisors (see below), whose sum is σ = 1199238040. Its totient is φ = 528335136.

The previous prime is 811372187. The next prime is 811372213. The reversal of 811372203 is 302273118.

811372203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 811372203 - 2⁴ = 811372187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (811372213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1047898 + ... + 1048671.

Almost surely, 2^811372203 is an apocalyptic number.

811372203 is a deficient number, since it is larger than the sum of its proper divisors (387865837).

811372203 is a wasteful number, since it uses less digits than its factorization.

811372203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2096618 (or 2096615 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 811372203 is about 28484.5958897085. The cubic root of 811372203 is about 932.6958441713.

The spelling of 811372203 in words is "eight hundred eleven million, three hundred seventy-two thousand, two hundred three".