23025730518121 has 2 divisors, whose sum is σ = 23025730518122. Its totient is φ = 23025730518120.

The previous prime is 23025730518107. The next prime is 23025730518157. The reversal of 23025730518121 is 12181503752032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19626574575721 + 3399155942400 = 4430189^2 + 1843680^2 .

It is a cyclic number.

It is not a de Polignac number, because 23025730518121 - 2¹¹ = 23025730516073 is a prime.

It is not a weakly prime, because it can be changed into another prime (23025730518421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11512865259060 + 11512865259061.

It is an arithmetic number, because the mean of its divisors is an integer number (11512865259061).

Almost surely, 2^{23025730518121} is an apocalyptic number.

It is an amenable number.

23025730518121 is a deficient number, since it is larger than the sum of its proper divisors (1).

23025730518121 is an equidigital number, since it uses as much as digits as its factorization.

23025730518121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 23025730518121 in words is "twenty-three trillion, twenty-five billion, seven hundred thirty million, five hundred eighteen thousand, one hundred twenty-one".