23321310251 has 2 divisors, whose sum is σ = 23321310252. Its totient is φ = 23321310250.

The previous prime is 23321310247. The next prime is 23321310269. The reversal of 23321310251 is 15201312332.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23321310251 - 2² = 23321310247 is a prime.

It is not a weakly prime, because it can be changed into another prime (23321310211) 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, 11660655125 + 11660655126.

It is an arithmetic number, because the mean of its divisors is an integer number (11660655126).

Almost surely, 2^23321310251 is an apocalyptic number.

23321310251 is a deficient number, since it is larger than the sum of its proper divisors (1).

23321310251 is an equidigital number, since it uses as much as digits as its factorization.

23321310251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 23321310251 its reverse (15201312332), we get a palindrome (38522622583).

The spelling of 23321310251 in words is "twenty-three billion, three hundred twenty-one million, three hundred ten thousand, two hundred fifty-one".