23221131031 has 16 divisors (see below), whose sum is σ = 26723312640. Its totient is φ = 19765476000.

The previous prime is 23221131007. The next prime is 23221131047. The reversal of 23221131031 is 13013112232.

It is a cyclic number.

It is not a de Polignac number, because 23221131031 - 2¹⁷ = 23220999959 is a prime.

It is a super-2 number, since 2×23221131031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23221131431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 928665 + ... + 953341.

It is an arithmetic number, because the mean of its divisors is an integer number (1670207040).

Almost surely, 2^23221131031 is an apocalyptic number.

23221131031 is a deficient number, since it is larger than the sum of its proper divisors (3502181609).

23221131031 is a wasteful number, since it uses less digits than its factorization.

23221131031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25614.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 23221131031 its reverse (13013112232), we get a palindrome (36234243263).

The spelling of 23221131031 in words is "twenty-three billion, two hundred twenty-one million, one hundred thirty-one thousand, thirty-one".