22131320400023 has 2 divisors, whose sum is σ = 22131320400024. Its totient is φ = 22131320400022.

The previous prime is 22131320399833. The next prime is 22131320400029. The reversal of 22131320400023 is 32000402313122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22131320400023 - 2⁴² = 17733273888919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22131320400029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11065660200011 + 11065660200012.

It is an arithmetic number, because the mean of its divisors is an integer number (11065660200012).

Almost surely, 2^{22131320400023} is an apocalyptic number.

22131320400023 is a deficient number, since it is larger than the sum of its proper divisors (1).

22131320400023 is an equidigital number, since it uses as much as digits as its factorization.

22131320400023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 22131320400023 its reverse (32000402313122), we get a palindrome (54131722713145).

The spelling of 22131320400023 in words is "twenty-two trillion, one hundred thirty-one billion, three hundred twenty million, four hundred thousand, twenty-three".