113003221 has 2 divisors, whose sum is σ = 113003222. Its totient is φ = 113003220.

The previous prime is 113003201. The next prime is 113003249. The reversal of 113003221 is 122300311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79014321 + 33988900 = 8889^2 + 5830^2 .

It is a cyclic number.

It is not a de Polignac number, because 113003221 - 2¹¹ = 113001173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113003201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56501610 + 56501611.

It is an arithmetic number, because the mean of its divisors is an integer number (56501611).

Almost surely, 2^113003221 is an apocalyptic number.

It is an amenable number.

113003221 is a deficient number, since it is larger than the sum of its proper divisors (1).

113003221 is an equidigital number, since it uses as much as digits as its factorization.

113003221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 113003221 is about 10630.2973147509. The cubic root of 113003221 is about 483.4634062393.

Adding to 113003221 its reverse (122300311), we get a palindrome (235303532).

The spelling of 113003221 in words is "one hundred thirteen million, three thousand, two hundred twenty-one".