22431423073 has 2 divisors, whose sum is σ = 22431423074. Its totient is φ = 22431423072.

The previous prime is 22431423071. The next prime is 22431423149. The reversal of 22431423073 is 37032413422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11520158224 + 10911264849 = 107332^2 + 104457^2 .

It is a cyclic number.

It is not a de Polignac number, because 22431423073 - 2¹ = 22431423071 is a prime.

Together with 22431423071, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22431423071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11215711536 + 11215711537.

It is an arithmetic number, because the mean of its divisors is an integer number (11215711537).

Almost surely, 2^22431423073 is an apocalyptic number.

It is an amenable number.

22431423073 is a deficient number, since it is larger than the sum of its proper divisors (1).

22431423073 is an equidigital number, since it uses as much as digits as its factorization.

22431423073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 31.

Adding to 22431423073 its reverse (37032413422), we get a palindrome (59463836495).

The spelling of 22431423073 in words is "twenty-two billion, four hundred thirty-one million, four hundred twenty-three thousand, seventy-three".