13028305803 has 4 divisors (see below), whose sum is σ = 17371074408. Its totient is φ = 8685537200.

The previous prime is 13028305753. The next prime is 13028305847. The reversal of 13028305803 is 30850382031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13028305803 - 2⁶ = 13028305739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13028305853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2171384298 + ... + 2171384303.

It is an arithmetic number, because the mean of its divisors is an integer number (4342768602).

Almost surely, 2^13028305803 is an apocalyptic number.

13028305803 is a deficient number, since it is larger than the sum of its proper divisors (4342768605).

13028305803 is an equidigital number, since it uses as much as digits as its factorization.

13028305803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4342768604.

The product of its (nonzero) digits is 17280, while the sum is 33.

Adding to 13028305803 its reverse (30850382031), we get a palindrome (43878687834).

The spelling of 13028305803 in words is "thirteen billion, twenty-eight million, three hundred five thousand, eight hundred three".