113031444 has 48 divisors (see below), whose sum is σ = 273873600. Its totient is φ = 36239616.

The previous prime is 113031409. The next prime is 113031467. The reversal of 113031444 is 444130311.

It is a super-2 number, since 2×113031444² = 25552214665450272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 113031444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131464 + ... + 132320.

It is an arithmetic number, because the mean of its divisors is an integer number (5705700).

Almost surely, 2^113031444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113031444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136936800).

113031444 is an abundant number, since it is smaller than the sum of its proper divisors (160842156).

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

113031444 is a wasteful number, since it uses less digits than its factorization.

113031444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272 (or 1270 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 113031444 is about 10631.6247112095. The cubic root of 113031444 is about 483.5036518530.

Adding to 113031444 its reverse (444130311), we get a palindrome (557161755).

The spelling of 113031444 in words is "one hundred thirteen million, thirty-one thousand, four hundred forty-four".