200012101321321 has 4 divisors (see below), whose sum is σ = 202074081747412. Its totient is φ = 197950120895232.

The previous prime is 200012101321313. The next prime is 200012101321393. The reversal of 200012101321321 is 123123101210002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 114161425083225 + 85850676238096 = 10684635^2 + 9265564^2 .

It is a cyclic number.

It is not a de Polignac number, because 200012101321321 - 2³ = 200012101321313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200012101321621) 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, 1030990212900 + ... + 1030990213093.

It is an arithmetic number, because the mean of its divisors is an integer number (50518520436853).

Almost surely, 2^{200012101321321} is an apocalyptic number.

It is an amenable number.

200012101321321 is a deficient number, since it is larger than the sum of its proper divisors (2061980426091).

200012101321321 is an equidigital number, since it uses as much as digits as its factorization.

200012101321321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061980426090.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 200012101321321 its reverse (123123101210002), we get a palindrome (323135202531323).

The spelling of 200012101321321 in words is "two hundred trillion, twelve billion, one hundred one million, three hundred twenty-one thousand, three hundred twenty-one".