12011100120091 has 2 divisors, whose sum is σ = 12011100120092. Its totient is φ = 12011100120090.

The previous prime is 12011100120049. The next prime is 12011100120101. The reversal of 12011100120091 is 19002100111021.

12011100120091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12011100120091 - 2²¹ = 12011098022939 is a prime.

It is not a weakly prime, because it can be changed into another prime (12011100121091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005550060045 + 6005550060046.

It is an arithmetic number, because the mean of its divisors is an integer number (6005550060046).

Almost surely, 2^{12011100120091} is an apocalyptic number.

12011100120091 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011100120091 is an equidigital number, since it uses as much as digits as its factorization.

12011100120091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 19.

The spelling of 12011100120091 in words is "twelve trillion, eleven billion, one hundred million, one hundred twenty thousand, ninety-one".