113223303021 has 4 divisors (see below), whose sum is σ = 150964404032. Its totient is φ = 75482202012.

The previous prime is 113223302987. The next prime is 113223303073. The reversal of 113223303021 is 120303322311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 113223303021 - 2¹³ = 113223294829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113223303121) 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, 18870550501 + ... + 18870550506.

It is an arithmetic number, because the mean of its divisors is an integer number (37741101008).

Almost surely, 2^113223303021 is an apocalyptic number.

It is an amenable number.

113223303021 is a deficient number, since it is larger than the sum of its proper divisors (37741101011).

113223303021 is an equidigital number, since it uses as much as digits as its factorization.

113223303021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37741101010.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 113223303021 its reverse (120303322311), we get a palindrome (233526625332).

The spelling of 113223303021 in words is "one hundred thirteen billion, two hundred twenty-three million, three hundred three thousand, twenty-one".