20340320003 has 4 divisors (see below), whose sum is σ = 20349822528. Its totient is φ = 20330817480.

The previous prime is 20340319999. The next prime is 20340320027. The reversal of 20340320003 is 30002304302.

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 20340320003 - 2² = 20340319999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20340320053) 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, 4748051 + ... + 4752332.

It is an arithmetic number, because the mean of its divisors is an integer number (5087455632).

Almost surely, 2^20340320003 is an apocalyptic number.

20340320003 is a deficient number, since it is larger than the sum of its proper divisors (9502525).

20340320003 is an equidigital number, since it uses as much as digits as its factorization.

20340320003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9502524.

The product of its (nonzero) digits is 432, while the sum is 17.

Adding to 20340320003 its reverse (30002304302), we get a palindrome (50342624305).

The spelling of 20340320003 in words is "twenty billion, three hundred forty million, three hundred twenty thousand, three".