13031013103 has 4 divisors (see below), whose sum is σ = 13031255160. Its totient is φ = 13030771048.

The previous prime is 13031013097. The next prime is 13031013113. The reversal of 13031013103 is 30131013031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30131013031 = 7 ⋅4304430433.

It is a cyclic number.

It is not a de Polignac number, because 13031013103 - 2⁹ = 13031012591 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 (13031013113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201 + ... + 161437.

It is an arithmetic number, because the mean of its divisors is an integer number (3257813790).

Almost surely, 2^13031013103 is an apocalyptic number.

13031013103 is a deficient number, since it is larger than the sum of its proper divisors (242057).

13031013103 is an equidigital number, since it uses as much as digits as its factorization.

13031013103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242056.

The product of its (nonzero) digits is 81, while the sum is 16.

Adding to 13031013103 its reverse (30131013031), we get a palindrome (43162026134).

The spelling of 13031013103 in words is "thirteen billion, thirty-one million, thirteen thousand, one hundred three".