13206239743 has 4 divisors (see below), whose sum is σ = 13209481440. Its totient is φ = 13202998048.

The previous prime is 13206239719. The next prime is 13206239773. The reversal of 13206239743 is 34793260231.

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 13206239743 - 2⁹ = 13206239231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13206239696 and 13206239705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13206239773) 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, 1614730 + ... + 1622887.

It is an arithmetic number, because the mean of its divisors is an integer number (3302370360).

Almost surely, 2^13206239743 is an apocalyptic number.

13206239743 is a deficient number, since it is larger than the sum of its proper divisors (3241697).

13206239743 is an equidigital number, since it uses as much as digits as its factorization.

13206239743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3241696.

The product of its (nonzero) digits is 163296, while the sum is 40.

Adding to 13206239743 its reverse (34793260231), we get a palindrome (47999499974).

The spelling of 13206239743 in words is "thirteen billion, two hundred six million, two hundred thirty-nine thousand, seven hundred forty-three".