11513555235432 has 24 divisors (see below), whose sum is σ = 31182545429490. Its totient is φ = 3837851745120.

The previous prime is 11513555235407. The next prime is 11513555235439. The reversal of 11513555235432 is 23453255531511.

11513555235432 is a `hidden beast` number, since 1 + 1 + 5 + 1 + 3 + 55 + 52 + 3 + 543 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8071587830916 + 3441967404516 = 2841054^2 + 1855254^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (11513555235439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 79955244619 + ... + 79955244762.

Almost surely, 2^{11513555235432} is an apocalyptic number.

11513555235432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11513555235432 is an abundant number, since it is smaller than the sum of its proper divisors (19668990194058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11513555235432 is a wasteful number, since it uses less digits than its factorization.

11513555235432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159910489393 (or 159910489386 counting only the distinct ones).

The product of its digits is 1350000, while the sum is 45.

The spelling of 11513555235432 in words is "eleven trillion, five hundred thirteen billion, five hundred fifty-five million, two hundred thirty-five thousand, four hundred thirty-two".