113889121860 has 96 divisors (see below), whose sum is σ = 326874844800. Its totient is φ = 29610869760.

The previous prime is 113889121837. The next prime is 113889121867. The reversal of 113889121860 is 68121988311.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (113889121867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4091871 + ... + 4119609.

It is an arithmetic number, because the mean of its divisors is an integer number (3404946300).

Almost surely, 2^113889121860 is an apocalyptic number.

113889121860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113889121860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163437422400).

113889121860 is an abundant number, since it is smaller than the sum of its proper divisors (212985722940).

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

113889121860 is a wasteful number, since it uses less digits than its factorization.

113889121860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29461 (or 29459 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 48.

The spelling of 113889121860 in words is "one hundred thirteen billion, eight hundred eighty-nine million, one hundred twenty-one thousand, eight hundred sixty".