113221140 has 24 divisors (see below), whose sum is σ = 317019360. Its totient is φ = 30192288.

The previous prime is 113221127. The next prime is 113221181. The reversal of 113221140 is 41122311.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 943450 + ... + 943569.

It is an arithmetic number, because the mean of its divisors is an integer number (13209140).

Almost surely, 2^113221140 is an apocalyptic number.

113221140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113221140 is an abundant number, since it is smaller than the sum of its proper divisors (203798220).

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

113221140 is a wasteful number, since it uses less digits than its factorization.

113221140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887031 (or 1887029 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 113221140 is about 10640.5422794141. The cubic root of 113221140 is about 483.7739820786.

Adding to 113221140 its reverse (41122311), we get a palindrome (154343451).

The spelling of 113221140 in words is "one hundred thirteen million, two hundred twenty-one thousand, one hundred forty".