113330021 has 4 divisors (see below), whose sum is σ = 129520032. Its totient is φ = 97140012.

The previous prime is 113330011. The next prime is 113330029. The reversal of 113330021 is 120033311.

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 a cyclic number.

It is not a de Polignac number, because 113330021 - 2¹⁴ = 113313637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113329978 and 113330005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113330029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8094995 + ... + 8095008.

It is an arithmetic number, because the mean of its divisors is an integer number (32380008).

Almost surely, 2^113330021 is an apocalyptic number.

It is an amenable number.

113330021 is a deficient number, since it is larger than the sum of its proper divisors (16190011).

113330021 is an equidigital number, since it uses as much as digits as its factorization.

113330021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16190010.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 113330021 is about 10645.6573775413. The cubic root of 113330021 is about 483.9290088374.

Adding to 113330021 its reverse (120033311), we get a palindrome (233363332).

The spelling of 113330021 in words is "one hundred thirteen million, three hundred thirty thousand, twenty-one".