113320240 has 80 divisors (see below), whose sum is σ = 289910016. Its totient is φ = 40851200.

The previous prime is 113320231. The next prime is 113320247. The reversal of 113320240 is 42023311.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113320247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114789 + ... + 115771.

Almost surely, 2^113320240 is an apocalyptic number.

113320240 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 113320240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144955008).

113320240 is an abundant number, since it is smaller than the sum of its proper divisors (176589776).

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

113320240 is a wasteful number, since it uses less digits than its factorization.

113320240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138 (or 1132 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 113320240 is about 10645.1979784314. The cubic root of 113320240 is about 483.9150865311.

Adding to 113320240 its reverse (42023311), we get a palindrome (155343551).

The spelling of 113320240 in words is "one hundred thirteen million, three hundred twenty thousand, two hundred forty".