20320002103 has 4 divisors (see below), whose sum is σ = 20361387528. Its totient is φ = 20278616680.

The previous prime is 20320001987. The next prime is 20320002107. The reversal of 20320002103 is 30120002302.

It is a happy number.

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 20320002103 - 2¹⁷ = 20319871031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20320002107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20691976 + ... + 20692957.

It is an arithmetic number, because the mean of its divisors is an integer number (5090346882).

Almost surely, 2^20320002103 is an apocalyptic number.

20320002103 is a deficient number, since it is larger than the sum of its proper divisors (41385425).

20320002103 is an equidigital number, since it uses as much as digits as its factorization.

20320002103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41385424.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 20320002103 its reverse (30120002302), we get a palindrome (50440004405).

The spelling of 20320002103 in words is "twenty billion, three hundred twenty million, two thousand, one hundred three".