13091103 has 6 divisors (see below), whose sum is σ = 18909384. Its totient is φ = 8727396.

The previous prime is 13091101. The next prime is 13091107. The reversal of 13091103 is 30119031.

It is not a de Polignac number, because 13091103 - 2¹ = 13091101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13091101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 727275 + ... + 727292.

It is an arithmetic number, because the mean of its divisors is an integer number (3151564).

Almost surely, 2^13091103 is an apocalyptic number.

13091103 is a deficient number, since it is larger than the sum of its proper divisors (5818281).

13091103 is a wasteful number, since it uses less digits than its factorization.

13091103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1454573 (or 1454570 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 18.

The square root of 13091103 is about 3618.1629316547. The cubic root of 13091103 is about 235.6814564275.

The spelling of 13091103 in words is "thirteen million, ninety-one thousand, one hundred three".