113221240 has 32 divisors (see below), whose sum is σ = 277907760. Its totient is φ = 41171200.

The previous prime is 113221217. The next prime is 113221253. The reversal of 113221240 is 42122311.

It is a super-3 number, since 3×113221240³ (a number of 25 digits) contains 333 as substring.

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, 128221 + ... + 129100.

Almost surely, 2^113221240 is an apocalyptic number.

113221240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113221240 is an abundant number, since it is smaller than the sum of its proper divisors (164686520).

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

113221240 is a wasteful number, since it uses less digits than its factorization.

113221240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257343 (or 257339 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 113221240 is about 10640.5469784217. The cubic root of 113221240 is about 483.7741245060.

Adding to 113221240 its reverse (42122311), we get a palindrome (155343551).

The spelling of 113221240 in words is "one hundred thirteen million, two hundred twenty-one thousand, two hundred forty".