1091297030911 has 8 divisors (see below), whose sum is σ = 1093462688880. Its totient is φ = 1089132323328.

The previous prime is 1091297030909. The next prime is 1091297030933. The reversal of 1091297030911 is 1190307921901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1091297030911 - 2¹ = 1091297030909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1091297030111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2083665 + ... + 2554261.

It is an arithmetic number, because the mean of its divisors is an integer number (136682836110).

Almost surely, 2^{1091297030911} is an apocalyptic number.

1091297030911 is a deficient number, since it is larger than the sum of its proper divisors (2165657969).

1091297030911 is an equidigital number, since it uses as much as digits as its factorization.

1091297030911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475193.

The product of its (nonzero) digits is 30618, while the sum is 43.

The spelling of 1091297030911 in words is "one trillion, ninety-one billion, two hundred ninety-seven million, thirty thousand, nine hundred eleven".