28381230003 has 8 divisors (see below), whose sum is σ = 43247588608. Its totient is φ = 16217845704.

The previous prime is 28381230001. The next prime is 28381230011. The reversal of 28381230003 is 30003218382.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28381230003 - 2¹ = 28381230001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28381230001) 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, 675743551 + ... + 675743592.

It is an arithmetic number, because the mean of its divisors is an integer number (5405948576).

Almost surely, 2^28381230003 is an apocalyptic number.

28381230003 is a deficient number, since it is larger than the sum of its proper divisors (14866358605).

28381230003 is a wasteful number, since it uses less digits than its factorization.

28381230003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351487153.

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 28381230003 its reverse (30003218382), we get a palindrome (58384448385).

The spelling of 28381230003 in words is "twenty-eight billion, three hundred eighty-one million, two hundred thirty thousand, three".