113231380 has 24 divisors (see below), whose sum is σ = 239972040. Its totient is φ = 44876160.

The previous prime is 113231351. The next prime is 113231387. The reversal of 113231380 is 83132311.

It can be written as a sum of positive squares in 4 ways, for example, as 1633284 + 111598096 = 1278^2 + 10564^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113231387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23791 + ... + 28150.

It is an arithmetic number, because the mean of its divisors is an integer number (9998835).

Almost surely, 2^113231380 is an apocalyptic number.

113231380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113231380 is an abundant number, since it is smaller than the sum of its proper divisors (126740660).

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

113231380 is a wasteful number, since it uses less digits than its factorization.

113231380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52059 (or 52057 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 113231380 is about 10641.0234470186. The cubic root of 113231380 is about 483.7885662109.

Adding to 113231380 its reverse (83132311), we get a palindrome (196363691).

The spelling of 113231380 in words is "one hundred thirteen million, two hundred thirty-one thousand, three hundred eighty".