113223330021 has 4 divisors (see below), whose sum is σ = 150964440032. Its totient is φ = 75482220012.

The previous prime is 113223329959. The next prime is 113223330047. The reversal of 113223330021 is 120033322311.

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 113223330021 - 2⁶ = 113223329957 is a prime.

It is a super-2 number, since 2×113223330021² (a number of 23 digits) contains 22 as substring.

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 113223330021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113223330061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18870555001 + ... + 18870555006.

It is an arithmetic number, because the mean of its divisors is an integer number (37741110008).

Almost surely, 2^113223330021 is an apocalyptic number.

It is an amenable number.

113223330021 is a deficient number, since it is larger than the sum of its proper divisors (37741110011).

113223330021 is an equidigital number, since it uses as much as digits as its factorization.

113223330021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37741110010.

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

Adding to 113223330021 its reverse (120033322311), we get a palindrome (233256652332).

The spelling of 113223330021 in words is "one hundred thirteen billion, two hundred twenty-three million, three hundred thirty thousand, twenty-one".