12011119997 has 2 divisors, whose sum is σ = 12011119998. Its totient is φ = 12011119996.

The previous prime is 12011119969. The next prime is 12011120029. The reversal of 12011119997 is 79991111021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11171221636 + 839898361 = 105694^2 + 28981^2 .

It is a cyclic number.

It is not a de Polignac number, because 12011119997 - 2²⁰ = 12010071421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12011119927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005559998 + 6005559999.

It is an arithmetic number, because the mean of its divisors is an integer number (6005559999).

Almost surely, 2^12011119997 is an apocalyptic number.

It is an amenable number.

12011119997 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011119997 is an equidigital number, since it uses as much as digits as its factorization.

12011119997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 41.

The spelling of 12011119997 in words is "twelve billion, eleven million, one hundred nineteen thousand, nine hundred ninety-seven".