113228813 has 2 divisors, whose sum is σ = 113228814. Its totient is φ = 113228812.

The previous prime is 113228783. The next prime is 113228837. The reversal of 113228813 is 318822311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107785924 + 5442889 = 10382^2 + 2333^2 .

It is a cyclic number.

It is not a de Polignac number, because 113228813 - 2¹⁶ = 113163277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113225813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56614406 + 56614407.

It is an arithmetic number, because the mean of its divisors is an integer number (56614407).

Almost surely, 2^113228813 is an apocalyptic number.

It is an amenable number.

113228813 is a deficient number, since it is larger than the sum of its proper divisors (1).

113228813 is an equidigital number, since it uses as much as digits as its factorization.

113228813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 29.

The square root of 113228813 is about 10640.9028282378. The cubic root of 113228813 is about 483.7849102908.

The spelling of 113228813 in words is "one hundred thirteen million, two hundred twenty-eight thousand, eight hundred thirteen".