1091920092011 has 16 divisors (see below), whose sum is σ = 1283336918784. Its totient is φ = 909690404064.

The previous prime is 1091920091989. The next prime is 1091920092023. The reversal of 1091920092011 is 1102900291901.

It is not a de Polignac number, because 1091920092011 - 2²⁶ = 1091852983147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1091920092041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13713485 + ... + 13792878.

It is an arithmetic number, because the mean of its divisors is an integer number (80208557424).

Almost surely, 2^{1091920092011} is an apocalyptic number.

1091920092011 is a deficient number, since it is larger than the sum of its proper divisors (191416826773).

1091920092011 is a wasteful number, since it uses less digits than its factorization.

1091920092011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27506530.

The product of its (nonzero) digits is 2916, while the sum is 35.

The spelling of 1091920092011 in words is "one trillion, ninety-one billion, nine hundred twenty million, ninety-two thousand, eleven".