200919091091 has 8 divisors (see below), whose sum is σ = 205043998320. Its totient is φ = 196806553632.

The previous prime is 200919091081. The next prime is 200919091097. The reversal of 200919091091 is 190190919002.

It is a happy number.

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 200919091091 - 2³⁴ = 183739221907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200919091097) 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, 3059621 + ... + 3124598.

It is an arithmetic number, because the mean of its divisors is an integer number (25630499790).

Almost surely, 2^200919091091 is an apocalyptic number.

200919091091 is a deficient number, since it is larger than the sum of its proper divisors (4124907229).

200919091091 is an equidigital number, since it uses as much as digits as its factorization.

200919091091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6184885.

The product of its (nonzero) digits is 13122, while the sum is 41.

The spelling of 200919091091 in words is "two hundred billion, nine hundred nineteen million, ninety-one thousand, ninety-one".