13443143503 has 2 divisors, whose sum is σ = 13443143504. Its totient is φ = 13443143502.

The previous prime is 13443143471. The next prime is 13443143507. The reversal of 13443143503 is 30534134431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13443143503 - 2⁵ = 13443143471 is a prime.

It is a super-2 number, since 2×13443143503² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13443143507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6721571751 + 6721571752.

It is an arithmetic number, because the mean of its divisors is an integer number (6721571752).

Almost surely, 2^13443143503 is an apocalyptic number.

13443143503 is a deficient number, since it is larger than the sum of its proper divisors (1).

13443143503 is an equidigital number, since it uses as much as digits as its factorization.

13443143503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 13443143503 its reverse (30534134431), we get a palindrome (43977277934).

The spelling of 13443143503 in words is "thirteen billion, four hundred forty-three million, one hundred forty-three thousand, five hundred three".