111720474280 has 32 divisors (see below), whose sum is σ = 251408124000. Its totient is φ = 44681601856.

The previous prime is 111720474269. The next prime is 111720474311. The reversal of 111720474280 is 82474027111.

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, 73539 + ... + 478381.

It is an arithmetic number, because the mean of its divisors is an integer number (7856503875).

Almost surely, 2^111720474280 is an apocalyptic number.

111720474280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111720474280 is an abundant number, since it is smaller than the sum of its proper divisors (139687649720).

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

111720474280 is a wasteful number, since it uses less digits than its factorization.

111720474280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411753 (or 411749 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 37.

The spelling of 111720474280 in words is "one hundred eleven billion, seven hundred twenty million, four hundred seventy-four thousand, two hundred eighty".