113103111091 has 4 divisors (see below), whose sum is σ = 117003218400. Its totient is φ = 109203003784.

The previous prime is 113103111067. The next prime is 113103111101. The reversal of 113103111091 is 190111301311.

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 113103111091 - 2¹⁹ = 113102586803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113103111391) 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, 1950053611 + ... + 1950053668.

It is an arithmetic number, because the mean of its divisors is an integer number (29250804600).

Almost surely, 2^113103111091 is an apocalyptic number.

113103111091 is a deficient number, since it is larger than the sum of its proper divisors (3900107309).

113103111091 is an equidigital number, since it uses as much as digits as its factorization.

113103111091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3900107308.

The product of its (nonzero) digits is 81, while the sum is 22.

The spelling of 113103111091 in words is "one hundred thirteen billion, one hundred three million, one hundred eleven thousand, ninety-one".