16321463431103 has 16 divisors (see below), whose sum is σ = 16516305535296. Its totient is φ = 16127180559360.

The previous prime is 16321463431087. The next prime is 16321463431121. The reversal of 16321463431103 is 30113436412361.

It is a cyclic number.

It is not a de Polignac number, because 16321463431103 - 2⁴ = 16321463431087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16321463431003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193654550 + ... + 193738812.

It is an arithmetic number, because the mean of its divisors is an integer number (1032269095956).

Almost surely, 2^{16321463431103} is an apocalyptic number.

16321463431103 is a deficient number, since it is larger than the sum of its proper divisors (194842104193).

16321463431103 is an equidigital number, since it uses as much as digits as its factorization.

16321463431103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87554.

The product of its (nonzero) digits is 93312, while the sum is 38.

Adding to 16321463431103 its reverse (30113436412361), we get a palindrome (46434899843464).

The spelling of 16321463431103 in words is "sixteen trillion, three hundred twenty-one billion, four hundred sixty-three million, four hundred thirty-one thousand, one hundred three".