20201200312123 has 2 divisors, whose sum is σ = 20201200312124. Its totient is φ = 20201200312122.

The previous prime is 20201200312099. The next prime is 20201200312133. The reversal of 20201200312123 is 32121300210202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20201200312123 - 2²¹ = 20201198214971 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20201200312123.

It is not a weakly prime, because it can be changed into another prime (20201200312133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100600156061 + 10100600156062.

It is an arithmetic number, because the mean of its divisors is an integer number (10100600156062).

Almost surely, 2^{20201200312123} is an apocalyptic number.

20201200312123 is a deficient number, since it is larger than the sum of its proper divisors (1).

20201200312123 is an equidigital number, since it uses as much as digits as its factorization.

20201200312123 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 20201200312123 its reverse (32121300210202), we get a palindrome (52322500522325).

The spelling of 20201200312123 in words is "twenty trillion, two hundred one billion, two hundred million, three hundred twelve thousand, one hundred twenty-three".