113220021223 has 4 divisors (see below), whose sum is σ = 113220785128. Its totient is φ = 113219257320.

The previous prime is 113220021193. The next prime is 113220021241. The reversal of 113220021223 is 322120022311.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 113220021223 - 2¹³ = 113220013031 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113220021223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113220061223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80136 + ... + 482557.

It is an arithmetic number, because the mean of its divisors is an integer number (28305196282).

Almost surely, 2^113220021223 is an apocalyptic number.

113220021223 is a deficient number, since it is larger than the sum of its proper divisors (763905).

113220021223 is an equidigital number, since it uses as much as digits as its factorization.

113220021223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763904.

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

Adding to 113220021223 its reverse (322120022311), we get a palindrome (435340043534).

It can be divided in two parts, 11322002 and 1223, that added together give a square (11323225 = 3365²).

The spelling of 113220021223 in words is "one hundred thirteen billion, two hundred twenty million, twenty-one thousand, two hundred twenty-three".