12020010001091 has 2 divisors, whose sum is σ = 12020010001092. Its totient is φ = 12020010001090.

The previous prime is 12020010001079. The next prime is 12020010001151. The reversal of 12020010001091 is 19010001002021.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12020010001091 is a prime.

It is not a weakly prime, because it can be changed into another prime (12020010001001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010005000545 + 6010005000546.

It is an arithmetic number, because the mean of its divisors is an integer number (6010005000546).

Almost surely, 2^{12020010001091} is an apocalyptic number.

12020010001091 is a deficient number, since it is larger than the sum of its proper divisors (1).

12020010001091 is an equidigital number, since it uses as much as digits as its factorization.

12020010001091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 17.

The spelling of 12020010001091 in words is "twelve trillion, twenty billion, ten million, one thousand, ninety-one".