22431321271 has 2 divisors, whose sum is σ = 22431321272. Its totient is φ = 22431321270.

The previous prime is 22431321259. The next prime is 22431321337. The reversal of 22431321271 is 17212313422.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22431321271 - 2⁵ = 22431321239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22431321971) 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, 11215660635 + 11215660636.

It is an arithmetic number, because the mean of its divisors is an integer number (11215660636).

Almost surely, 2^22431321271 is an apocalyptic number.

22431321271 is a deficient number, since it is larger than the sum of its proper divisors (1).

22431321271 is an equidigital number, since it uses as much as digits as its factorization.

22431321271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 28.

Adding to 22431321271 its reverse (17212313422), we get a palindrome (39643634693).

The spelling of 22431321271 in words is "twenty-two billion, four hundred thirty-one million, three hundred twenty-one thousand, two hundred seventy-one".