110991288120 has 32 divisors (see below), whose sum is σ = 332973864720. Its totient is φ = 29597676800.

The previous prime is 110991288119. The next prime is 110991288139. The reversal of 110991288120 is 21882199011.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 462463581 + ... + 462463820.

Almost surely, 2^110991288120 is an apocalyptic number.

110991288120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

110991288120 is an abundant number, since it is smaller than the sum of its proper divisors (221982576600).

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

110991288120 is a wasteful number, since it uses less digits than its factorization.

110991288120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924927415 (or 924927411 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 42.

The spelling of 110991288120 in words is "one hundred ten billion, nine hundred ninety-one million, two hundred eighty-eight thousand, one hundred twenty".