23223971249 has 2 divisors, whose sum is σ = 23223971250. Its totient is φ = 23223971248.

The previous prime is 23223971231. The next prime is 23223971257. The reversal of 23223971249 is 94217932232.

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., 22663797025 + 560174224 = 150545^2 + 23668^2 .

It is a cyclic number.

It is not a de Polignac number, because 23223971249 - 2²⁸ = 22955535793 is a prime.

It is not a weakly prime, because it can be changed into another prime (23223971299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11611985624 + 11611985625.

It is an arithmetic number, because the mean of its divisors is an integer number (11611985625).

Almost surely, 2^23223971249 is an apocalyptic number.

It is an amenable number.

23223971249 is a deficient number, since it is larger than the sum of its proper divisors (1).

23223971249 is an equidigital number, since it uses as much as digits as its factorization.

23223971249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 44.

The spelling of 23223971249 in words is "twenty-three billion, two hundred twenty-three million, nine hundred seventy-one thousand, two hundred forty-nine".