113128870 has 8 divisors (see below), whose sum is σ = 203631984. Its totient is φ = 45251544.

The previous prime is 113128861. The next prime is 113128877. The reversal of 113128870 is 78821311.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113128877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5656434 + ... + 5656453.

It is an arithmetic number, because the mean of its divisors is an integer number (25453998).

Almost surely, 2^113128870 is an apocalyptic number.

113128870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

113128870 is a deficient number, since it is larger than the sum of its proper divisors (90503114).

113128870 is a wasteful number, since it uses less digits than its factorization.

113128870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11312894.

The product of its (nonzero) digits is 2688, while the sum is 31.

The square root of 113128870 is about 10636.2056204269. The cubic root of 113128870 is about 483.6425285452.

The spelling of 113128870 in words is "one hundred thirteen million, one hundred twenty-eight thousand, eight hundred seventy".