20201200123201 has 4 divisors (see below), whose sum is σ = 20204919738304. Its totient is φ = 20197480508100.

The previous prime is 20201200123199. The next prime is 20201200123259. The reversal of 20201200123201 is 10232100210202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20201200123201 - 2¹ = 20201200123199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20201200123501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1859799405 + ... + 1859810266.

It is an arithmetic number, because the mean of its divisors is an integer number (5051229934576).

Almost surely, 2^{20201200123201} is an apocalyptic number.

It is an amenable number.

20201200123201 is a deficient number, since it is larger than the sum of its proper divisors (3719615103).

20201200123201 is an equidigital number, since it uses as much as digits as its factorization.

20201200123201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3719615102.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20201200123201 its reverse (10232100210202), we get a palindrome (30433300333403).

The spelling of 20201200123201 in words is "twenty trillion, two hundred one billion, two hundred million, one hundred twenty-three thousand, two hundred one".