1121100000091 has 2 divisors, whose sum is σ = 1121100000092. Its totient is φ = 1121100000090.

The previous prime is 1121100000047. The next prime is 1121100000151. The reversal of 1121100000091 is 1900000011211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1121100000091 - 2¹⁹ = 1121099475803 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121100007091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560550000045 + 560550000046.

It is an arithmetic number, because the mean of its divisors is an integer number (560550000046).

Almost surely, 2^{1121100000091} is an apocalyptic number.

1121100000091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121100000091 is an equidigital number, since it uses as much as digits as its factorization.

1121100000091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 16.

The spelling of 1121100000091 in words is "one trillion, one hundred twenty-one billion, one hundred million, ninety-one", and thus it is an aban number.