28321046303 has 16 divisors (see below), whose sum is σ = 31297781760. Its totient is φ = 25411557600.

The previous prime is 28321046293. The next prime is 28321046311. The reversal of 28321046303 is 30364012382.

It is not a de Polignac number, because 28321046303 - 2²⁸ = 28052610847 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28321046303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28321046363) 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, 4513058 + ... + 4519328.

It is an arithmetic number, because the mean of its divisors is an integer number (1956111360).

Almost surely, 2^28321046303 is an apocalyptic number.

28321046303 is a deficient number, since it is larger than the sum of its proper divisors (2976735457).

28321046303 is a wasteful number, since it uses less digits than its factorization.

28321046303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11558.

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 28321046303 its reverse (30364012382), we get a palindrome (58685058685).

The spelling of 28321046303 in words is "twenty-eight billion, three hundred twenty-one million, forty-six thousand, three hundred three".