11525423221369 has 2 divisors, whose sum is σ = 11525423221370. Its totient is φ = 11525423221368.

The previous prime is 11525423221321. The next prime is 11525423221379. The reversal of 11525423221369 is 96312232452511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11525346010000 + 77211369 = 3394900^2 + 8787^2 .

It is a cyclic number.

It is not a de Polignac number, because 11525423221369 - 2¹³ = 11525423213177 is a prime.

It is a super-2 number, since 2×11525423221369² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11525423221379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5762711610684 + 5762711610685.

It is an arithmetic number, because the mean of its divisors is an integer number (5762711610685).

Almost surely, 2^{11525423221369} is an apocalyptic number.

It is an amenable number.

11525423221369 is a deficient number, since it is larger than the sum of its proper divisors (1).

11525423221369 is an equidigital number, since it uses as much as digits as its factorization.

11525423221369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 777600, while the sum is 46.

The spelling of 11525423221369 in words is "eleven trillion, five hundred twenty-five billion, four hundred twenty-three million, two hundred twenty-one thousand, three hundred sixty-nine".