113304221 has 2 divisors, whose sum is σ = 113304222. Its totient is φ = 113304220.

The previous prime is 113304211. The next prime is 113304227. The reversal of 113304221 is 122403311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61622500 + 51681721 = 7850^2 + 7189^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113304221 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 113304221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113304227) 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 as a sum of consecutive naturals, namely, 56652110 + 56652111.

It is an arithmetic number, because the mean of its divisors is an integer number (56652111).

Almost surely, 2^113304221 is an apocalyptic number.

It is an amenable number.

113304221 is a deficient number, since it is larger than the sum of its proper divisors (1).

113304221 is an equidigital number, since it uses as much as digits as its factorization.

113304221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 113304221 is about 10644.4455468568. The cubic root of 113304221 is about 483.8922833052.

Adding to 113304221 its reverse (122403311), we get a palindrome (235707532).

It can be divided in two parts, 11330 and 4221, that added together give a palindrome (15551).

The spelling of 113304221 in words is "one hundred thirteen million, three hundred four thousand, two hundred twenty-one".