113312500 has 126 divisors (see below), whose sum is σ = 296129022. Its totient is φ = 37800000.

The previous prime is 113312491. The next prime is 113312501. The reversal of 113312500 is 5213311.

It can be written as a sum of positive squares in 7 ways, for example, as 109077136 + 4235364 = 10444^2 + 2058^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113312501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 3062482 + ... + 3062518.

Almost surely, 2^113312500 is an apocalyptic number.

113312500 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 113312500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148064511).

113312500 is an abundant number, since it is smaller than the sum of its proper divisors (182816522).

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

113312500 is an frugal number, since it uses more digits than its factorization.

113312500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85 (or 51 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 113312500 is about 10644.8344280219. The cubic root of 113312500 is about 483.9040688228.

Adding to 113312500 its reverse (5213311), we get a palindrome (118525811).

It can be divided in two parts, 11331 and 2500, that added together give a palindrome (13831).

The spelling of 113312500 in words is "one hundred thirteen million, three hundred twelve thousand, five hundred".