12011111838967 has 2 divisors, whose sum is σ = 12011111838968. Its totient is φ = 12011111838966.

The previous prime is 12011111838953. The next prime is 12011111839039. The reversal of 12011111838967 is 76983811111021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12011111838967 - 2⁷ = 12011111838839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12011111838967.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12011111839967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005555919483 + 6005555919484.

It is an arithmetic number, because the mean of its divisors is an integer number (6005555919484).

Almost surely, 2^{12011111838967} is an apocalyptic number.

12011111838967 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011111838967 is an equidigital number, since it uses as much as digits as its factorization.

12011111838967 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 49.

Adding to 12011111838967 its reverse (76983811111021), we get a palindrome (88994922949988).

The spelling of 12011111838967 in words is "twelve trillion, eleven billion, one hundred eleven million, eight hundred thirty-eight thousand, nine hundred sixty-seven".