13581907103 has 4 divisors (see below), whose sum is σ = 13613274528. Its totient is φ = 13550539680.

The previous prime is 13581907081. The next prime is 13581907133. The reversal of 13581907103 is 30170918531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30170918531 = 13 ⋅2320839887.

It is a cyclic number.

It is not a de Polignac number, because 13581907103 - 2¹⁸ = 13581644959 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 (13581907133) 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, 15683063 + ... + 15683928.

It is an arithmetic number, because the mean of its divisors is an integer number (3403318632).

Almost surely, 2^13581907103 is an apocalyptic number.

13581907103 is a deficient number, since it is larger than the sum of its proper divisors (31367425).

13581907103 is an equidigital number, since it uses as much as digits as its factorization.

13581907103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31367424.

The product of its (nonzero) digits is 22680, while the sum is 38.

The spelling of 13581907103 in words is "thirteen billion, five hundred eighty-one million, nine hundred seven thousand, one hundred three".