11111011209967 has 2 divisors, whose sum is σ = 11111011209968. Its totient is φ = 11111011209966.

The previous prime is 11111011209941. The next prime is 11111011209971. The reversal of 11111011209967 is 76990211011111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11111011209967 - 2¹⁵ = 11111011177199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11111011209367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555505604983 + 5555505604984.

It is an arithmetic number, because the mean of its divisors is an integer number (5555505604984).

Almost surely, 2^{11111011209967} is an apocalyptic number.

11111011209967 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111011209967 is an equidigital number, since it uses as much as digits as its factorization.

11111011209967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 40.

The spelling of 11111011209967 in words is "eleven trillion, one hundred eleven billion, eleven million, two hundred nine thousand, nine hundred sixty-seven".