11130732180 has 48 divisors (see below), whose sum is σ = 34628946240. Its totient is φ = 2968195104.

The previous prime is 11130732157. The next prime is 11130732199. The reversal of 11130732180 is 8123703111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10305694 + ... + 10306773.

It is an arithmetic number, because the mean of its divisors is an integer number (721436380).

Almost surely, 2^11130732180 is an apocalyptic number.

11130732180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11130732180 is an abundant number, since it is smaller than the sum of its proper divisors (23498214060).

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

11130732180 is a wasteful number, since it uses less digits than its factorization.

11130732180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20612485 (or 20612477 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The spelling of 11130732180 in words is "eleven billion, one hundred thirty million, seven hundred thirty-two thousand, one hundred eighty".