109202403091 has 4 divisors (see below), whose sum is σ = 109203087384. Its totient is φ = 109201718800.

The previous prime is 109202403031. The next prime is 109202403097. The reversal of 109202403091 is 190304202901.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 109202403091 - 2¹¹ = 109202401043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109202403097) 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, 38076 + ... + 468886.

It is an arithmetic number, because the mean of its divisors is an integer number (27300771846).

Almost surely, 2^109202403091 is an apocalyptic number.

109202403091 is a deficient number, since it is larger than the sum of its proper divisors (684293).

109202403091 is an equidigital number, since it uses as much as digits as its factorization.

109202403091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684292.

The product of its (nonzero) digits is 3888, while the sum is 31.

Adding to 109202403091 its reverse (190304202901), we get a palindrome (299506605992).

The spelling of 109202403091 in words is "one hundred nine billion, two hundred two million, four hundred three thousand, ninety-one".