23510255313221 has 2 divisors, whose sum is σ = 23510255313222. Its totient is φ = 23510255313220.

The previous prime is 23510255313197. The next prime is 23510255313271. The reversal of 23510255313221 is 12231355201532.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17824481829025 + 5685773484196 = 4221905^2 + 2384486^2 .

It is a cyclic number.

It is not a de Polignac number, because 23510255313221 - 2¹⁰ = 23510255312197 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23510255313271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11755127656610 + 11755127656611.

It is an arithmetic number, because the mean of its divisors is an integer number (11755127656611).

Almost surely, 2^{23510255313221} is an apocalyptic number.

It is an amenable number.

23510255313221 is a deficient number, since it is larger than the sum of its proper divisors (1).

23510255313221 is an equidigital number, since it uses as much as digits as its factorization.

23510255313221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54000, while the sum is 35.

The spelling of 23510255313221 in words is "twenty-three trillion, five hundred ten billion, two hundred fifty-five million, three hundred thirteen thousand, two hundred twenty-one".