109272911091 has 4 divisors (see below), whose sum is σ = 145697214792. Its totient is φ = 72848607392.

The previous prime is 109272911081. The next prime is 109272911119. The reversal of 109272911091 is 190119272901.

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 109272911091 - 2⁷ = 109272910963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109272911021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18212151846 + ... + 18212151851.

It is an arithmetic number, because the mean of its divisors is an integer number (36424303698).

Almost surely, 2^109272911091 is an apocalyptic number.

109272911091 is a deficient number, since it is larger than the sum of its proper divisors (36424303701).

109272911091 is an equidigital number, since it uses as much as digits as its factorization.

109272911091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36424303700.

The product of its (nonzero) digits is 20412, while the sum is 42.

The spelling of 109272911091 in words is "one hundred nine billion, two hundred seventy-two million, nine hundred eleven thousand, ninety-one".