13123157103 has 48 divisors (see below), whose sum is σ = 22086282816. Its totient is φ = 7353400320.

The previous prime is 13123157059. The next prime is 13123157137. The reversal of 13123157103 is 30175132131.

It is a happy number.

It is not a de Polignac number, because 13123157103 - 2⁸ = 13123156847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123157183) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1290025 + ... + 1300157.

It is an arithmetic number, because the mean of its divisors is an integer number (460130892).

Almost surely, 2^13123157103 is an apocalyptic number.

13123157103 is a deficient number, since it is larger than the sum of its proper divisors (8963125713).

13123157103 is a wasteful number, since it uses less digits than its factorization.

13123157103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10544 (or 10541 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

Adding to 13123157103 its reverse (30175132131), we get a palindrome (43298289234).

The spelling of 13123157103 in words is "thirteen billion, one hundred twenty-three million, one hundred fifty-seven thousand, one hundred three".