109291030191 has 32 divisors (see below), whose sum is σ = 185982382080. Its totient is φ = 62134980768.

The previous prime is 109291030169. The next prime is 109291030223. The reversal of 109291030191 is 191030192901.

It is not a de Polignac number, because 109291030191 - 2¹⁰ = 109291029167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109291030141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1430431 + ... + 1504896.

It is an arithmetic number, because the mean of its divisors is an integer number (5811949440).

Almost surely, 2^109291030191 is an apocalyptic number.

109291030191 is a deficient number, since it is larger than the sum of its proper divisors (76691351889).

109291030191 is a wasteful number, since it uses less digits than its factorization.

109291030191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2935540 (or 2935534 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 36.

The spelling of 109291030191 in words is "one hundred nine billion, two hundred ninety-one million, thirty thousand, one hundred ninety-one".