11999443 has 2 divisors, whose sum is σ = 11999444. Its totient is φ = 11999442.

The previous prime is 11999423. The next prime is 11999461. The reversal of 11999443 is 34499911.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11999443 - 2¹⁷ = 11868371 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11999396 and 11999405.

It is not a weakly prime, because it can be changed into another prime (11999423) 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, 5999721 + 5999722.

It is an arithmetic number, because the mean of its divisors is an integer number (5999722).

Almost surely, 2^11999443 is an apocalyptic number.

11999443 is a deficient number, since it is larger than the sum of its proper divisors (1).

11999443 is an equidigital number, since it uses as much as digits as its factorization.

11999443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 40.

The square root of 11999443 is about 3464.0212181798. The cubic root of 11999443 is about 228.9393062012.

The spelling of 11999443 in words is "eleven million, nine hundred ninety-nine thousand, four hundred forty-three".