2111032091 has 4 divisors (see below), whose sum is σ = 2412608112. Its totient is φ = 1809456072.

The previous prime is 2111032087. The next prime is 2111032093. The reversal of 2111032091 is 1902301112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2111032091 - 2² = 2111032087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111032093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150788000 + ... + 150788013.

It is an arithmetic number, because the mean of its divisors is an integer number (603152028).

Almost surely, 2^2111032091 is an apocalyptic number.

2111032091 is a deficient number, since it is larger than the sum of its proper divisors (301576021).

2111032091 is an equidigital number, since it uses as much as digits as its factorization.

2111032091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301576020.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 2111032091 is about 45945.9692573788. The cubic root of 2111032091 is about 1282.8177044897.

The spelling of 2111032091 in words is "two billion, one hundred eleven million, thirty-two thousand, ninety-one".