200530121532001 has 4 divisors (see below), whose sum is σ = 204313708730772. Its totient is φ = 196746534333232.

The previous prime is 200530121531953. The next prime is 200530121532019. The reversal of 200530121532001 is 100235121035002.

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 87865801752976 + 112664319779025 = 9373676^2 + 10614345^2 .

It is a cyclic number.

It is not a de Polignac number, because 200530121532001 - 2²⁷ = 200529987314273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200530121536001) 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, 1891793599306 + ... + 1891793599411.

It is an arithmetic number, because the mean of its divisors is an integer number (51078427182693).

Almost surely, 2^{200530121532001} is an apocalyptic number.

It is an amenable number.

200530121532001 is a deficient number, since it is larger than the sum of its proper divisors (3783587198771).

200530121532001 is an equidigital number, since it uses as much as digits as its factorization.

200530121532001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3783587198770.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 200530121532001 its reverse (100235121035002), we get a palindrome (300765242567003).

The spelling of 200530121532001 in words is "two hundred trillion, five hundred thirty billion, one hundred twenty-one million, five hundred thirty-two thousand, one".