113221013 has 2 divisors, whose sum is σ = 113221014. Its totient is φ = 113221012.

The previous prime is 113221007. The next prime is 113221027. The reversal of 113221013 is 310122311.

It is an a-pointer prime, because the next prime (113221027) can be obtained adding 113221013 to its sum of digits (14).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88040689 + 25180324 = 9383^2 + 5018^2 .

It is an emirp because it is prime and its reverse (310122311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113221013 - 2⁶ = 113220949 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113220013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56610506 + 56610507.

It is an arithmetic number, because the mean of its divisors is an integer number (56610507).

Almost surely, 2^113221013 is an apocalyptic number.

It is an amenable number.

113221013 is a deficient number, since it is larger than the sum of its proper divisors (1).

113221013 is an equidigital number, since it uses as much as digits as its factorization.

113221013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 113221013 is about 10640.5363116715. The cubic root of 113221013 is about 483.7738011957.

Adding to 113221013 its reverse (310122311), we get a palindrome (423343324).

The spelling of 113221013 in words is "one hundred thirteen million, two hundred twenty-one thousand, thirteen".