23221031133 has 16 divisors (see below), whose sum is σ = 31764624192. Its totient is φ = 15080208000.

The previous prime is 23221031111. The next prime is 23221031143. The reversal of 23221031133 is 33113012232.

It is not a de Polignac number, because 23221031133 - 2²⁶ = 23153922269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23221031143) 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, 61503 + ... + 224108.

It is an arithmetic number, because the mean of its divisors is an integer number (1985289012).

Almost surely, 2^23221031133 is an apocalyptic number.

It is an amenable number.

23221031133 is a deficient number, since it is larger than the sum of its proper divisors (8543593059).

23221031133 is a wasteful number, since it uses less digits than its factorization.

23221031133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286316.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 23221031133 its reverse (33113012232), we get a palindrome (56334043365).

The spelling of 23221031133 in words is "twenty-three billion, two hundred twenty-one million, thirty-one thousand, one hundred thirty-three".