13143243403 has 4 divisors (see below), whose sum is σ = 13172912568. Its totient is φ = 13113574240.

The previous prime is 13143243367. The next prime is 13143243413. The reversal of 13143243403 is 30434234131.

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-13143243403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13143243413) 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, 14833918 + ... + 14834803.

It is an arithmetic number, because the mean of its divisors is an integer number (3293228142).

Almost surely, 2^13143243403 is an apocalyptic number.

13143243403 is a deficient number, since it is larger than the sum of its proper divisors (29669165).

13143243403 is an equidigital number, since it uses as much as digits as its factorization.

13143243403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29669164.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 13143243403 its reverse (30434234131), we get a palindrome (43577477534).

The spelling of 13143243403 in words is "thirteen billion, one hundred forty-three million, two hundred forty-three thousand, four hundred three".