13001103 has 6 divisors (see below), whose sum is σ = 18779384. Its totient is φ = 8667396.

The previous prime is 13001101. The next prime is 13001119. The reversal of 13001103 is 30110031.

13001103 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13001103 - 2¹ = 13001101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 1444567 = 13001103 / (1 + 3 + 0 + 0 + 1 + 1 + 0 + 3).

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13001101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 722275 + ... + 722292.

Almost surely, 2^13001103 is an apocalyptic number.

13001103 is a deficient number, since it is larger than the sum of its proper divisors (5778281).

13001103 is a wasteful number, since it uses less digits than its factorization.

13001103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444573 (or 1444570 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 9.

The square root of 13001103 is about 3605.7042307987. The cubic root of 13001103 is about 235.1401186408.

Adding to 13001103 its reverse (30110031), we get a palindrome (43111134).

The spelling of 13001103 in words is "thirteen million, one thousand, one hundred three".