13540330123 has 4 divisors (see below), whose sum is σ = 13578047280. Its totient is φ = 13502612968.

The previous prime is 13540330109. The next prime is 13540330163. The reversal of 13540330123 is 32103304531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13540330123 - 2⁹ = 13540329611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13540330163) 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, 18858040 + ... + 18858757.

It is an arithmetic number, because the mean of its divisors is an integer number (3394511820).

Almost surely, 2^13540330123 is an apocalyptic number.

13540330123 is a deficient number, since it is larger than the sum of its proper divisors (37717157).

13540330123 is an equidigital number, since it uses as much as digits as its factorization.

13540330123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37717156.

The product of its (nonzero) digits is 3240, while the sum is 25.

Adding to 13540330123 its reverse (32103304531), we get a palindrome (45643634654).

The spelling of 13540330123 in words is "thirteen billion, five hundred forty million, three hundred thirty thousand, one hundred twenty-three".