23551403201 has 2 divisors, whose sum is σ = 23551403202. Its totient is φ = 23551403200.

The previous prime is 23551403177. The next prime is 23551403257. The reversal of 23551403201 is 10230415532.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23531866801 + 19536400 = 153401^2 + 4420^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23551403201 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (23551403801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11775701600 + 11775701601.

It is an arithmetic number, because the mean of its divisors is an integer number (11775701601).

Almost surely, 2^23551403201 is an apocalyptic number.

It is an amenable number.

23551403201 is a deficient number, since it is larger than the sum of its proper divisors (1).

23551403201 is an equidigital number, since it uses as much as digits as its factorization.

23551403201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 23551403201 its reverse (10230415532), we get a palindrome (33781818733).

The spelling of 23551403201 in words is "twenty-three billion, five hundred fifty-one million, four hundred three thousand, two hundred one".