113203420 has 24 divisors (see below), whose sum is σ = 259339248. Its totient is φ = 41164800.

The previous prime is 113203417. The next prime is 113203421. The reversal of 113203420 is 24302311.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 113203394 and 113203403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113203421) 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 7 ways as a sum of consecutive naturals, for example, 257061 + ... + 257500.

It is an arithmetic number, because the mean of its divisors is an integer number (10805802).

Almost surely, 2^113203420 is an apocalyptic number.

113203420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113203420 is an abundant number, since it is smaller than the sum of its proper divisors (146135828).

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

113203420 is a wasteful number, since it uses less digits than its factorization.

113203420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514581 (or 514579 counting only the distinct ones).

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

The square root of 113203420 is about 10639.7095825027. The cubic root of 113203420 is about 483.7487426159.

Adding to 113203420 its reverse (24302311), we get a palindrome (137505731).

The spelling of 113203420 in words is "one hundred thirteen million, two hundred three thousand, four hundred twenty".