13113430423 has 4 divisors (see below), whose sum is σ = 13120478728. Its totient is φ = 13106382120.

The previous prime is 13113430417. The next prime is 13113430433. The reversal of 13113430423 is 32403431131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32403431131 = 1579 ⋅20521489.

It is a cyclic number.

It is not a de Polignac number, because 13113430423 - 2³³ = 4523495831 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 (13113430433) 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, 3521361 + ... + 3525082.

It is an arithmetic number, because the mean of its divisors is an integer number (3280119682).

Almost surely, 2^13113430423 is an apocalyptic number.

13113430423 is a deficient number, since it is larger than the sum of its proper divisors (7048305).

13113430423 is an equidigital number, since it uses as much as digits as its factorization.

13113430423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7048304.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 13113430423 its reverse (32403431131), we get a palindrome (45516861554).

The spelling of 13113430423 in words is "thirteen billion, one hundred thirteen million, four hundred thirty thousand, four hundred twenty-three".