20321230103 has 2 divisors, whose sum is σ = 20321230104. Its totient is φ = 20321230102.

The previous prime is 20321230099. The next prime is 20321230123. The reversal of 20321230103 is 30103212302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20321230103 - 2² = 20321230099 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20321230123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10160615051 + 10160615052.

It is an arithmetic number, because the mean of its divisors is an integer number (10160615052).

Almost surely, 2^20321230103 is an apocalyptic number.

20321230103 is a deficient number, since it is larger than the sum of its proper divisors (1).

20321230103 is an equidigital number, since it uses as much as digits as its factorization.

20321230103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20321230103 its reverse (30103212302), we get a palindrome (50424442405).

The spelling of 20321230103 in words is "twenty billion, three hundred twenty-one million, two hundred thirty thousand, one hundred three".