11113919 has 2 divisors, whose sum is σ = 11113920. Its totient is φ = 11113918.

The previous prime is 11113913. The next prime is 11113933. The reversal of 11113919 is 91931111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11113919 - 2¹⁶ = 11048383 is a prime.

It is a super-2 number, since 2×11113919² = 247038391077122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11113913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5556959 + 5556960.

It is an arithmetic number, because the mean of its divisors is an integer number (5556960).

Almost surely, 2^11113919 is an apocalyptic number.

11113919 is a deficient number, since it is larger than the sum of its proper divisors (1).

11113919 is an equidigital number, since it uses as much as digits as its factorization.

11113919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 243, while the sum is 26.

The square root of 11113919 is about 3333.7544900607. The cubic root of 11113919 is about 223.1631120443.

The spelling of 11113919 in words is "eleven million, one hundred thirteen thousand, nine hundred nineteen".