11849909111 has 2 divisors, whose sum is σ = 11849909112. Its totient is φ = 11849909110.

The previous prime is 11849909089. The next prime is 11849909171. The reversal of 11849909111 is 11190994811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11849909111 - 2¹⁸ = 11849646967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11849909171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5924954555 + 5924954556.

It is an arithmetic number, because the mean of its divisors is an integer number (5924954556).

Almost surely, 2^11849909111 is an apocalyptic number.

11849909111 is a deficient number, since it is larger than the sum of its proper divisors (1).

11849909111 is an equidigital number, since it uses as much as digits as its factorization.

11849909111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 44.

The spelling of 11849909111 in words is "eleven billion, eight hundred forty-nine million, nine hundred nine thousand, one hundred eleven".