11199989243 has 2 divisors, whose sum is σ = 11199989244. Its totient is φ = 11199989242.

The previous prime is 11199989233. The next prime is 11199989327. The reversal of 11199989243 is 34298999111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11199989243 - 2²⁶ = 11132880379 is a prime.

It is not a weakly prime, because it can be changed into another prime (11199989233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5599994621 + 5599994622.

It is an arithmetic number, because the mean of its divisors is an integer number (5599994622).

Almost surely, 2^11199989243 is an apocalyptic number.

11199989243 is a deficient number, since it is larger than the sum of its proper divisors (1).

11199989243 is an equidigital number, since it uses as much as digits as its factorization.

11199989243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1259712, while the sum is 56.

The spelling of 11199989243 in words is "eleven billion, one hundred ninety-nine million, nine hundred eighty-nine thousand, two hundred forty-three".