103891113 has 16 divisors (see below), whose sum is σ = 156438400. Its totient is φ = 68124240.

The previous prime is 103891111. The next prime is 103891121. The reversal of 103891113 is 311198301.

It is a happy number.

It is not a de Polignac number, because 103891113 - 2¹ = 103891111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (103891111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29893 + ... + 33186.

It is an arithmetic number, because the mean of its divisors is an integer number (9777400).

Almost surely, 2^103891113 is an apocalyptic number.

It is an amenable number.

103891113 is a deficient number, since it is larger than the sum of its proper divisors (52547287).

103891113 is an equidigital number, since it uses as much as digits as its factorization.

103891113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63149 (or 63143 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 103891113 is about 10192.6990046798. The cubic root of 103891113 is about 470.1027585789.

The spelling of 103891113 in words is "one hundred three million, eight hundred ninety-one thousand, one hundred thirteen".