113223020220 has 72 divisors (see below), whose sum is σ = 363645710064. Its totient is φ = 28416757248.

The previous prime is 113223020149. The next prime is 113223020353. The reversal of 113223020220 is 22020322311.

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 = 113223020193 and 113223020202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18497434 + ... + 18503553.

It is an arithmetic number, because the mean of its divisors is an integer number (5050634862).

Almost surely, 2^113223020220 is an apocalyptic number.

113223020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113223020220 is an abundant number, since it is smaller than the sum of its proper divisors (250422689844).

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

113223020220 is a wasteful number, since it uses less digits than its factorization.

113223020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37001019 (or 37001014 counting only the distinct ones).

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

Adding to 113223020220 its reverse (22020322311), we get a palindrome (135243342531).

The spelling of 113223020220 in words is "one hundred thirteen billion, two hundred twenty-three million, twenty thousand, two hundred twenty".