20201312200123 has 2 divisors, whose sum is σ = 20201312200124. Its totient is φ = 20201312200122.

The previous prime is 20201312200109. The next prime is 20201312200177. The reversal of 20201312200123 is 32100221310202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20201312200123 - 2⁹ = 20201312199611 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20201312200123.

It is not a weakly prime, because it can be changed into another prime (20201312200193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100656100061 + 10100656100062.

It is an arithmetic number, because the mean of its divisors is an integer number (10100656100062).

Almost surely, 2^{20201312200123} is an apocalyptic number.

20201312200123 is a deficient number, since it is larger than the sum of its proper divisors (1).

20201312200123 is an equidigital number, since it uses as much as digits as its factorization.

20201312200123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20201312200123 its reverse (32100221310202), we get a palindrome (52301533510325).

The spelling of 20201312200123 in words is "twenty trillion, two hundred one billion, three hundred twelve million, two hundred thousand, one hundred twenty-three".