113423220 has 192 divisors, whose sum is σ = 372556800. Its totient is φ = 28615680.

The previous prime is 113423213. The next prime is 113423231. The reversal of 113423220 is 22324311.

113423220 is a `hidden beast` number, since 1 + 1 + 342 + 322 + 0 = 666.

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 = 113423193 and 113423202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1040526 + ... + 1040634.

It is an arithmetic number, because the mean of its divisors is an integer number (1940400).

Almost surely, 2^113423220 is an apocalyptic number.

113423220 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 113423220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186278400).

113423220 is an abundant number, since it is smaller than the sum of its proper divisors (259133580).

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

113423220 is a wasteful number, since it uses less digits than its factorization.

113423220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 113423220 is about 10650.0338027633. The cubic root of 113423220 is about 484.0616284250.

Adding to 113423220 its reverse (22324311), we get a palindrome (135747531).

The spelling of 113423220 in words is "one hundred thirteen million, four hundred twenty-three thousand, two hundred twenty".