16503193412723 has 2 divisors, whose sum is σ = 16503193412724. Its totient is φ = 16503193412722.

The previous prime is 16503193412707. The next prime is 16503193412737. The reversal of 16503193412723 is 32721439130561.

It is a strong prime.

It is an emirp because it is prime and its reverse (32721439130561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16503193412723 - 2⁴ = 16503193412707 is a prime.

It is not a weakly prime, because it can be changed into another prime (16503193412773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8251596706361 + 8251596706362.

It is an arithmetic number, because the mean of its divisors is an integer number (8251596706362).

Almost surely, 2^{16503193412723} is an apocalyptic number.

16503193412723 is a deficient number, since it is larger than the sum of its proper divisors (1).

16503193412723 is an equidigital number, since it uses as much as digits as its factorization.

16503193412723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 816480, while the sum is 47.

The spelling of 16503193412723 in words is "sixteen trillion, five hundred three billion, one hundred ninety-three million, four hundred twelve thousand, seven hundred twenty-three".