113242420 has 12 divisors (see below), whose sum is σ = 237809124. Its totient is φ = 45296960.

The previous prime is 113242379. The next prime is 113242421. The reversal of 113242420 is 24242311.

It can be written as a sum of positive squares in 2 ways, for example, as 61027344 + 52215076 = 7812^2 + 7226^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113242421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2831041 + ... + 2831080.

It is an arithmetic number, because the mean of its divisors is an integer number (19817427).

Almost surely, 2^113242420 is an apocalyptic number.

113242420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113242420 is an abundant number, since it is smaller than the sum of its proper divisors (124566704).

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

113242420 is a wasteful number, since it uses less digits than its factorization.

113242420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5662130 (or 5662128 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 113242420 is about 10641.5421814698. The cubic root of 113242420 is about 483.8042887435.

Adding to 113242420 its reverse (24242311), we get a palindrome (137484731).

The spelling of 113242420 in words is "one hundred thirteen million, two hundred forty-two thousand, four hundred twenty".