113313420 has 144 divisors (see below), whose sum is σ = 378443520. Its totient is φ = 27216000.

The previous prime is 113313391. The next prime is 113313439. The reversal of 113313420 is 24313311.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 113313393 and 113313402.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 298791 + ... + 299169.

It is an arithmetic number, because the mean of its divisors is an integer number (2628080).

Almost surely, 2^113313420 is an apocalyptic number.

113313420 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 113313420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189221760).

113313420 is an abundant number, since it is smaller than the sum of its proper divisors (265130100).

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

113313420 is a wasteful number, since it uses less digits than its factorization.

113313420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556 (or 551 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 113313420 is about 10644.8776413823. The cubic root of 113313420 is about 483.9053784474.

Adding to 113313420 its reverse (24313311), we get a palindrome (137626731).

The spelling of 113313420 in words is "one hundred thirteen million, three hundred thirteen thousand, four hundred twenty".