1104020191 has 4 divisors (see below), whose sum is σ = 1107788472. Its totient is φ = 1100251912.

The previous prime is 1104020189. The next prime is 1104020207. The reversal of 1104020191 is 1910204011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1910204011 = 101 ⋅18912911.

It is a cyclic number.

It is not a de Polignac number, because 1104020191 - 2¹ = 1104020189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1104020791) 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, 1883701 + ... + 1884286.

It is an arithmetic number, because the mean of its divisors is an integer number (276947118).

Almost surely, 2^1104020191 is an apocalyptic number.

1104020191 is a deficient number, since it is larger than the sum of its proper divisors (3768281).

1104020191 is an equidigital number, since it uses as much as digits as its factorization.

1104020191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3768280.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 1104020191 is about 33226.7992891280. The cubic root of 1104020191 is about 1033.5361511593.

The spelling of 1104020191 in words is "one billion, one hundred four million, twenty thousand, one hundred ninety-one".