1199999999911 has 2 divisors, whose sum is σ = 1199999999912. Its totient is φ = 1199999999910.

The previous prime is 1199999999867. The next prime is 1199999999929.

1199999999911 is nontrivially palindromic in base 10.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 1199999999911 - 2¹¹ = 1199999997863 is a prime.

It is a zygodrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1199399999911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 599999999955 + 599999999956.

It is an arithmetic number, because the mean of its divisors is an integer number (599999999956).

Almost surely, 2^{1199999999911} is an apocalyptic number.

1199999999911 is a deficient number, since it is larger than the sum of its proper divisors (1).

1199999999911 is an equidigital number, since it uses as much as digits as its factorization.

1199999999911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387420489, while the sum is 85.

The spelling of 1199999999911 in words is "one trillion, one hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred eleven".