23221032031 has 2 divisors, whose sum is σ = 23221032032. Its totient is φ = 23221032030.

The previous prime is 23221032013. The next prime is 23221032041. The reversal of 23221032031 is 13023012232.

Together with previous prime (23221032013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23221032031 - 2⁷ = 23221031903 is a prime.

It is a super-2 number, since 2×23221032031² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23221032041) 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 as a sum of consecutive naturals, namely, 11610516015 + 11610516016.

It is an arithmetic number, because the mean of its divisors is an integer number (11610516016).

Almost surely, 2^23221032031 is an apocalyptic number.

23221032031 is a deficient number, since it is larger than the sum of its proper divisors (1).

23221032031 is an equidigital number, since it uses as much as digits as its factorization.

23221032031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 23221032031 its reverse (13023012232), we get a palindrome (36244044263).

The spelling of 23221032031 in words is "twenty-three billion, two hundred twenty-one million, thirty-two thousand, thirty-one".