22431022423 has 2 divisors, whose sum is σ = 22431022424. Its totient is φ = 22431022422.

The previous prime is 22431022417. The next prime is 22431022429. The reversal of 22431022423 is 32422013422.

It is a balanced prime because it is at equal distance from previous prime (22431022417) and next prime (22431022429).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22431022423 is a prime.

It is a super-2 number, since 2×22431022423² (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 (22431022429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11215511211 + 11215511212.

It is an arithmetic number, because the mean of its divisors is an integer number (11215511212).

Almost surely, 2^22431022423 is an apocalyptic number.

22431022423 is a deficient number, since it is larger than the sum of its proper divisors (1).

22431022423 is an equidigital number, since it uses as much as digits as its factorization.

22431022423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 22431022423 its reverse (32422013422), we get a palindrome (54853035845).

Subtracting 22431022423 from its reverse (32422013422), we obtain a palindrome (9990990999).

The spelling of 22431022423 in words is "twenty-two billion, four hundred thirty-one million, twenty-two thousand, four hundred twenty-three".