11513535344432 has 20 divisors (see below), whose sum is σ = 24335426978376. Its totient is φ = 5233425156480.

The previous prime is 11513535344429. The next prime is 11513535344461. The reversal of 11513535344432 is 23444353531511.

11513535344432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11513535344432² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32708907053 + ... + 32708907404.

Almost surely, 2^{11513535344432} is an apocalyptic number.

It is an amenable number.

11513535344432 is an abundant number, since it is smaller than the sum of its proper divisors (12821891633944).

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

11513535344432 is a wasteful number, since it uses less digits than its factorization.

11513535344432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65417814476 (or 65417814470 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 44.

Adding to 11513535344432 its reverse (23444353531511), we get a palindrome (34957888875943).

The spelling of 11513535344432 in words is "eleven trillion, five hundred thirteen billion, five hundred thirty-five million, three hundred forty-four thousand, four hundred thirty-two".