11199943 has 2 divisors, whose sum is σ = 11199944. Its totient is φ = 11199942.

The previous prime is 11199931. The next prime is 11199967. The reversal of 11199943 is 34999111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11199943 - 2⁹ = 11199431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11199973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5599971 + 5599972.

It is an arithmetic number, because the mean of its divisors is an integer number (5599972).

Almost surely, 2^11199943 is an apocalyptic number.

11199943 is a deficient number, since it is larger than the sum of its proper divisors (1).

11199943 is an equidigital number, since it uses as much as digits as its factorization.

11199943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8748, while the sum is 37.

The square root of 11199943 is about 3346.6315901216. The cubic root of 11199943 is about 223.7374088605.

The spelling of 11199943 in words is "eleven million, one hundred ninety-nine thousand, nine hundred forty-three".