13240324123 has 4 divisors (see below), whose sum is σ = 14258810608. Its totient is φ = 12221837640.

The previous prime is 13240324109. The next prime is 13240324127. The reversal of 13240324123 is 32142304231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32142304231 = 131 ⋅245361101.

It is a cyclic number.

It is not a de Polignac number, because 13240324123 - 2¹⁷ = 13240193051 is a prime.

It is a super-3 number, since 3×13240324123³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13240324127) 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, 509243223 + ... + 509243248.

It is an arithmetic number, because the mean of its divisors is an integer number (3564702652).

Almost surely, 2^13240324123 is an apocalyptic number.

13240324123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13240324123 is a deficient number, since it is larger than the sum of its proper divisors (1018486485).

13240324123 is a wasteful number, since it uses less digits than its factorization.

13240324123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018486484.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 13240324123 its reverse (32142304231), we get a palindrome (45382628354).

The spelling of 13240324123 in words is "thirteen billion, two hundred forty million, three hundred twenty-four thousand, one hundred twenty-three".