13042243423 has 16 divisors (see below), whose sum is σ = 14464115712. Its totient is φ = 11661300000.

The previous prime is 13042243393. The next prime is 13042243433. The reversal of 13042243423 is 32434224031.

It is a cyclic number.

It is not a de Polignac number, because 13042243423 - 2⁵ = 13042243391 is a prime.

It is a super-2 number, since 2×13042243423² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13042243391 and 13042243400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13042243433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128890 + ... + 206632.

It is an arithmetic number, because the mean of its divisors is an integer number (904007232).

Almost surely, 2^13042243423 is an apocalyptic number.

13042243423 is a deficient number, since it is larger than the sum of its proper divisors (1421872289).

13042243423 is a wasteful number, since it uses less digits than its factorization.

13042243423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78006.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 13042243423 its reverse (32434224031), we get a palindrome (45476467454).

The spelling of 13042243423 in words is "thirteen billion, forty-two million, two hundred forty-three thousand, four hundred twenty-three".