13431063242503 has 2 divisors, whose sum is σ = 13431063242504. Its totient is φ = 13431063242502.

The previous prime is 13431063242501. The next prime is 13431063242603. The reversal of 13431063242503 is 30524236013431.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13431063242503 - 2¹ = 13431063242501 is a prime.

Together with 13431063242501, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13431063242501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6715531621251 + 6715531621252.

It is an arithmetic number, because the mean of its divisors is an integer number (6715531621252).

Almost surely, 2^{13431063242503} is an apocalyptic number.

13431063242503 is a deficient number, since it is larger than the sum of its proper divisors (1).

13431063242503 is an equidigital number, since it uses as much as digits as its factorization.

13431063242503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 37.

Adding to 13431063242503 its reverse (30524236013431), we get a palindrome (43955299255934).

The spelling of 13431063242503 in words is "thirteen trillion, four hundred thirty-one billion, sixty-three million, two hundred forty-two thousand, five hundred three".