20101231322303 has 2 divisors, whose sum is σ = 20101231322304. Its totient is φ = 20101231322302.

The previous prime is 20101231322297. The next prime is 20101231322321. The reversal of 20101231322303 is 30322313210102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20101231322303 - 2¹⁰ = 20101231321279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20101231322323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050615661151 + 10050615661152.

It is an arithmetic number, because the mean of its divisors is an integer number (10050615661152).

Almost surely, 2^{20101231322303} is an apocalyptic number.

20101231322303 is a deficient number, since it is larger than the sum of its proper divisors (1).

20101231322303 is an equidigital number, since it uses as much as digits as its factorization.

20101231322303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 20101231322303 its reverse (30322313210102), we get a palindrome (50423544532405).

The spelling of 20101231322303 in words is "twenty trillion, one hundred one billion, two hundred thirty-one million, three hundred twenty-two thousand, three hundred three".