11305551432 has 64 divisors (see below), whose sum is σ = 32320281600. Its totient is φ = 3228287040.

The previous prime is 11305551419. The next prime is 11305551473. The reversal of 11305551432 is 23415550311.

It is a self number, because there is not a number n which added to its sum of digits gives 11305551432.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285669 + ... + 322827.

It is an arithmetic number, because the mean of its divisors is an integer number (505004400).

Almost surely, 2^11305551432 is an apocalyptic number.

11305551432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11305551432 is an abundant number, since it is smaller than the sum of its proper divisors (21014730168).

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

11305551432 is a wasteful number, since it uses less digits than its factorization.

11305551432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38986 (or 38982 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The spelling of 11305551432 in words is "eleven billion, three hundred five million, five hundred fifty-one thousand, four hundred thirty-two".