113223122020 has 24 divisors (see below), whose sum is σ = 238975511544. Its totient is φ = 45059352576.

The previous prime is 113223122011. The next prime is 113223122123. The reversal of 113223122020 is 20221322311.

It can be written as a sum of positive squares in 4 ways, for example, as 12133463104 + 101089658916 = 110152^2 + 317946^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14364477 + ... + 14372356.

It is an arithmetic number, because the mean of its divisors is an integer number (9957312981).

Almost surely, 2^113223122020 is an apocalyptic number.

113223122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113223122020 is an abundant number, since it is smaller than the sum of its proper divisors (125752389524).

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

113223122020 is a wasteful number, since it uses less digits than its factorization.

113223122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28737039 (or 28737037 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 113223122020 its reverse (20221322311), we get a palindrome (133444444331).

The spelling of 113223122020 in words is "one hundred thirteen billion, two hundred twenty-three million, one hundred twenty-two thousand, twenty".