115321007100 has 144 divisors (see below), whose sum is σ = 359551237248. Its totient is φ = 28369109760.

The previous prime is 115321007089. The next prime is 115321007143. The reversal of 115321007100 is 1700123511.

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 47 ways as a sum of consecutive naturals, for example, 6961027 + ... + 6977573.

It is an arithmetic number, because the mean of its divisors is an integer number (2496883592).

Almost surely, 2^115321007100 is an apocalyptic number.

115321007100 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 115321007100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179775618624).

115321007100 is an abundant number, since it is smaller than the sum of its proper divisors (244230230148).

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

115321007100 is a wasteful number, since it uses less digits than its factorization.

115321007100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18364 (or 18357 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 21.

The spelling of 115321007100 in words is "one hundred fifteen billion, three hundred twenty-one million, seven thousand, one hundred".