23515314233 has 2 divisors, whose sum is σ = 23515314234. Its totient is φ = 23515314232.

The previous prime is 23515314217. The next prime is 23515314247. The reversal of 23515314233 is 33241351532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12080647744 + 11434666489 = 109912^2 + 106933^2 .

It is a cyclic number.

It is not a de Polignac number, because 23515314233 - 2⁴ = 23515314217 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23515314233.

It is not a weakly prime, because it can be changed into another prime (23515314283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11757657116 + 11757657117.

It is an arithmetic number, because the mean of its divisors is an integer number (11757657117).

Almost surely, 2^23515314233 is an apocalyptic number.

It is an amenable number.

23515314233 is a deficient number, since it is larger than the sum of its proper divisors (1).

23515314233 is an equidigital number, since it uses as much as digits as its factorization.

23515314233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 32.

Adding to 23515314233 its reverse (33241351532), we get a palindrome (56756665765).

The spelling of 23515314233 in words is "twenty-three billion, five hundred fifteen million, three hundred fourteen thousand, two hundred thirty-three".