28302002003 has 8 divisors (see below), whose sum is σ = 31130077296. Its totient is φ = 25729091520.

The previous prime is 28302001963. The next prime is 28302002023. The reversal of 28302002003 is 30020020382.

It is a happy number.

It is not a de Polignac number, because 28302002003 - 2²⁴ = 28285224787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28302002023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10630526 + ... + 10633187.

It is an arithmetic number, because the mean of its divisors is an integer number (3891259662).

Almost surely, 2^28302002003 is an apocalyptic number.

28302002003 is a deficient number, since it is larger than the sum of its proper divisors (2828075293).

28302002003 is an equidigital number, since it uses as much as digits as its factorization.

28302002003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21263746 (or 21263724 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 28302002003 its reverse (30020020382), we get a palindrome (58322022385).

The spelling of 28302002003 in words is "twenty-eight billion, three hundred two million, two thousand, three".