13200231301021 has 4 divisors (see below), whose sum is σ = 13200272457372. Its totient is φ = 13200190144672.

The previous prime is 13200231301013. The next prime is 13200231301121. The reversal of 13200231301021 is 12010313200231.

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 4988138095396 + 8212093205625 = 2233414^2 + 2865675^2 .

It is a cyclic number.

It is not a de Polignac number, because 13200231301021 - 2³ = 13200231301013 is a prime.

It is a super-2 number, since 2×13200231301021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13200231301021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13200231301121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20093266 + ... + 20739811.

It is an arithmetic number, because the mean of its divisors is an integer number (3300068114343).

Almost surely, 2^{13200231301021} is an apocalyptic number.

It is an amenable number.

13200231301021 is a deficient number, since it is larger than the sum of its proper divisors (41156351).

13200231301021 is an equidigital number, since it uses as much as digits as its factorization.

13200231301021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41156350.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 13200231301021 its reverse (12010313200231), we get a palindrome (25210544501252).

The spelling of 13200231301021 in words is "thirteen trillion, two hundred billion, two hundred thirty-one million, three hundred one thousand, twenty-one".