23221132031 has 32 divisors (see below), whose sum is σ = 25750301760. Its totient is φ = 20846592000.

The previous prime is 23221131893. The next prime is 23221132037. The reversal of 23221132031 is 13023112232.

It is a cyclic number.

It is not a de Polignac number, because 23221132031 - 2¹⁰ = 23221131007 is a prime.

It is a super-2 number, since 2×23221132031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23221131994 and 23221132012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23221132037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19334231 + ... + 19335431.

It is an arithmetic number, because the mean of its divisors is an integer number (804696930).

Almost surely, 2^23221132031 is an apocalyptic number.

23221132031 is a deficient number, since it is larger than the sum of its proper divisors (2529169729).

23221132031 is a wasteful number, since it uses less digits than its factorization.

23221132031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 23221132031 its reverse (13023112232), we get a palindrome (36244244263).

The spelling of 23221132031 in words is "twenty-three billion, two hundred twenty-one million, one hundred thirty-two thousand, thirty-one".