23630613533 has 2 divisors, whose sum is σ = 23630613534. Its totient is φ = 23630613532.

The previous prime is 23630613509. The next prime is 23630613551. The reversal of 23630613533 is 33531603632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20817584089 + 2813029444 = 144283^2 + 53038^2 .

It is a cyclic number.

It is not a de Polignac number, because 23630613533 - 2⁸ = 23630613277 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23630613493 and 23630613502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23630613733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11815306766 + 11815306767.

It is an arithmetic number, because the mean of its divisors is an integer number (11815306767).

Almost surely, 2^23630613533 is an apocalyptic number.

It is an amenable number.

23630613533 is a deficient number, since it is larger than the sum of its proper divisors (1).

23630613533 is an equidigital number, since it uses as much as digits as its factorization.

23630613533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87480, while the sum is 35.

Subtracting 23630613533 from its reverse (33531603632), we obtain a palindrome (9900990099).

The spelling of 23630613533 in words is "twenty-three billion, six hundred thirty million, six hundred thirteen thousand, five hundred thirty-three".