11113913 has 2 divisors, whose sum is σ = 11113914. Its totient is φ = 11113912.

The previous prime is 11113901. The next prime is 11113919. The reversal of 11113913 is 31931111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10291264 + 822649 = 3208^2 + 907^2 .

It is a cyclic number.

It is not a de Polignac number, because 11113913 - 2⁶ = 11113849 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11113919) 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, 5556956 + 5556957.

It is an arithmetic number, because the mean of its divisors is an integer number (5556957).

Almost surely, 2^11113913 is an apocalyptic number.

It is an amenable number.

11113913 is a deficient number, since it is larger than the sum of its proper divisors (1).

11113913 is an equidigital number, since it uses as much as digits as its factorization.

11113913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81, while the sum is 20.

The square root of 11113913 is about 3333.7535901743. The cubic root of 11113913 is about 223.1630718851.

The spelling of 11113913 in words is "eleven million, one hundred thirteen thousand, nine hundred thirteen".