23133771 has 6 divisors (see below), whose sum is σ = 33415460. Its totient is φ = 15422508.

The previous prime is 23133757. The next prime is 23133839. The reversal of 23133771 is 17733132.

It is not a de Polignac number, because 23133771 - 2⁵ = 23133739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23132771) 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, 1285201 + ... + 1285218.

Almost surely, 2^23133771 is an apocalyptic number.

23133771 is a deficient number, since it is larger than the sum of its proper divisors (10281689).

23133771 is a wasteful number, since it uses less digits than its factorization.

23133771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2570425 (or 2570422 counting only the distinct ones).

The product of its digits is 2646, while the sum is 27.

The square root of 23133771 is about 4809.7578941148. The cubic root of 23133771 is about 284.9369759071.

It can be divided in two parts, 2313 and 3771, that added together give a square (6084 = 78²).

The spelling of 23133771 in words is "twenty-three million, one hundred thirty-three thousand, seven hundred seventy-one".