23223312137 has 2 divisors, whose sum is σ = 23223312138. Its totient is φ = 23223312136.

The previous prime is 23223312109. The next prime is 23223312149. The reversal of 23223312137 is 73121332232.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18618875401 + 4604436736 = 136451^2 + 67856^2 .

It is a cyclic number.

It is not a de Polignac number, because 23223312137 - 2³⁴ = 6043442953 is a prime.

It is a super-2 number, since 2×23223312137² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23223312107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11611656068 + 11611656069.

It is an arithmetic number, because the mean of its divisors is an integer number (11611656069).

Almost surely, 2^23223312137 is an apocalyptic number.

It is an amenable number.

23223312137 is a deficient number, since it is larger than the sum of its proper divisors (1).

23223312137 is an equidigital number, since it uses as much as digits as its factorization.

23223312137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 29.

Adding to 23223312137 its reverse (73121332232), we get a palindrome (96344644369).

The spelling of 23223312137 in words is "twenty-three billion, two hundred twenty-three million, three hundred twelve thousand, one hundred thirty-seven".