811823535103 has 6 divisors (see below), whose sum is σ = 944366153136. Its totient is φ = 695848744332.

The previous prime is 811823535079. The next prime is 811823535151. The reversal of 811823535103 is 301535328118.

It is not a de Polignac number, because 811823535103 - 2²⁵ = 811789980671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811823535703) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8283913575 + ... + 8283913672.

It is an arithmetic number, because the mean of its divisors is an integer number (157394358856).

Almost surely, 2^811823535103 is an apocalyptic number.

811823535103 is a deficient number, since it is larger than the sum of its proper divisors (132542618033).

811823535103 is a wasteful number, since it uses less digits than its factorization.

811823535103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16567827261 (or 16567827254 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 811823535103 in words is "eight hundred eleven billion, eight hundred twenty-three million, five hundred thirty-five thousand, one hundred three".