11801028732 has 12 divisors (see below), whose sum is σ = 27535733736. Its totient is φ = 3933676240.

The previous prime is 11801028721. The next prime is 11801028803. The reversal of 11801028732 is 23782010811.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 11801028693 and 11801028702.

It is a congruent number.

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, 491709519 + ... + 491709542.

It is an arithmetic number, because the mean of its divisors is an integer number (2294644478).

Almost surely, 2^11801028732 is an apocalyptic number.

11801028732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11801028732 is an abundant number, since it is smaller than the sum of its proper divisors (15734705004).

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

11801028732 is a wasteful number, since it uses less digits than its factorization.

11801028732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983419068 (or 983419066 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 33.

The spelling of 11801028732 in words is "eleven billion, eight hundred one million, twenty-eight thousand, seven hundred thirty-two".