1100100111091 has 2 divisors, whose sum is σ = 1100100111092. Its totient is φ = 1100100111090.

The previous prime is 1100100111083. The next prime is 1100100111101. The reversal of 1100100111091 is 1901110010011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1100100111091 - 2³ = 1100100111083 is a prime.

It is not a weakly prime, because it can be changed into another prime (1100100111041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550050055545 + 550050055546.

It is an arithmetic number, because the mean of its divisors is an integer number (550050055546).

Almost surely, 2^{1100100111091} is an apocalyptic number.

1100100111091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100100111091 is an equidigital number, since it uses as much as digits as its factorization.

1100100111091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9, while the sum is 16.

The spelling of 1100100111091 in words is "one trillion, one hundred billion, one hundred million, one hundred eleven thousand, ninety-one".