22431220307 has 2 divisors, whose sum is σ = 22431220308. Its totient is φ = 22431220306.

The previous prime is 22431220291. The next prime is 22431220313. The reversal of 22431220307 is 70302213422.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22431220307 - 2⁴ = 22431220291 is a prime.

It is a super-2 number, since 2×22431220307² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22431220397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11215610153 + 11215610154.

It is an arithmetic number, because the mean of its divisors is an integer number (11215610154).

Almost surely, 2^22431220307 is an apocalyptic number.

22431220307 is a deficient number, since it is larger than the sum of its proper divisors (1).

22431220307 is an equidigital number, since it uses as much as digits as its factorization.

22431220307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 26.

Adding to 22431220307 its reverse (70302213422), we get a palindrome (92733433729).

The spelling of 22431220307 in words is "twenty-two billion, four hundred thirty-one million, two hundred twenty thousand, three hundred seven".