1323210020201 has 8 divisors (see below), whose sum is σ = 1331322527304. Its totient is φ = 1315111611520.

The previous prime is 1323210020191. The next prime is 1323210020203. The reversal of 1323210020201 is 1020200123231.

It can be written as a sum of positive squares in 4 ways, for example, as 747318754576 + 575891265625 = 864476^2 + 758875^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1323210020201 is a prime.

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 1323210020201.

It is not an unprimeable number, because it can be changed into a prime (1323210020203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3336290 + ... + 3711771.

It is an arithmetic number, because the mean of its divisors is an integer number (166415315913).

Almost surely, 2^{1323210020201} is an apocalyptic number.

It is an amenable number.

1323210020201 is a deficient number, since it is larger than the sum of its proper divisors (8112507103).

1323210020201 is an equidigital number, since it uses as much as digits as its factorization.

1323210020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7049211.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1323210020201 its reverse (1020200123231), we get a palindrome (2343410143432).

The spelling of 1323210020201 in words is "one trillion, three hundred twenty-three billion, two hundred ten million, twenty thousand, two hundred one".