13243403323 has 4 divisors (see below), whose sum is σ = 13244081760. Its totient is φ = 13242724888.

The previous prime is 13243403281. The next prime is 13243403339. The reversal of 13243403323 is 32330434231.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13243403323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13243403291 and 13243403300.

It is not an unprimeable number, because it can be changed into a prime (13243403023) 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, 309043 + ... + 349276.

It is an arithmetic number, because the mean of its divisors is an integer number (3311020440).

Almost surely, 2^13243403323 is an apocalyptic number.

13243403323 is a deficient number, since it is larger than the sum of its proper divisors (678437).

13243403323 is an equidigital number, since it uses as much as digits as its factorization.

13243403323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678436.

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 13243403323 its reverse (32330434231), we get a palindrome (45573837554).

The spelling of 13243403323 in words is "thirteen billion, two hundred forty-three million, four hundred three thousand, three hundred twenty-three".