11452521315231 has 24 divisors (see below), whose sum is σ = 17418010836720. Its totient is φ = 7231168982016.

The previous prime is 11452521315223. The next prime is 11452521315233. The reversal of 11452521315231 is 13251312525411.

11452521315231 is a `hidden beast` number, since 1 + 1 + 4 + 52 + 52 + 1 + 31 + 523 + 1 = 666.

It is not a de Polignac number, because 11452521315231 - 2³ = 11452521315223 is a prime.

It is a super-2 number, since 2×11452521315231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11452521315233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8650626 + ... + 9886271.

It is an arithmetic number, because the mean of its divisors is an integer number (725750451530).

Almost surely, 2^{11452521315231} is an apocalyptic number.

11452521315231 is a deficient number, since it is larger than the sum of its proper divisors (5965489521489).

11452521315231 is a wasteful number, since it uses less digits than its factorization.

11452521315231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18540535 (or 18540532 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The spelling of 11452521315231 in words is "eleven trillion, four hundred fifty-two billion, five hundred twenty-one million, three hundred fifteen thousand, two hundred thirty-one".