12000001101997 has 2 divisors, whose sum is σ = 12000001101998. Its totient is φ = 12000001101996.

The previous prime is 12000001101911. The next prime is 12000001102031. The reversal of 12000001101997 is 79910110000021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11810143954921 + 189857147076 = 3436589^2 + 435726^2 .

It is a cyclic number.

It is not a de Polignac number, because 12000001101997 - 2⁴³ = 3203908079789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12000001201997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000000550998 + 6000000550999.

It is an arithmetic number, because the mean of its divisors is an integer number (6000000550999).

Almost surely, 2^{12000001101997} is an apocalyptic number.

It is an amenable number.

12000001101997 is a deficient number, since it is larger than the sum of its proper divisors (1).

12000001101997 is an equidigital number, since it uses as much as digits as its factorization.

12000001101997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 31.

The spelling of 12000001101997 in words is "twelve trillion, one million, one hundred one thousand, nine hundred ninety-seven".