1323210131201 has 4 divisors (see below), whose sum is σ = 1512240149952. Its totient is φ = 1134180112452.

The previous prime is 1323210131179. The next prime is 1323210131203. The reversal of 1323210131201 is 1021310123231.

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 1323210131201 - 2⁶ = 1323210131137 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1323210131203) 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, 94515009365 + ... + 94515009378.

It is an arithmetic number, because the mean of its divisors is an integer number (378060037488).

Almost surely, 2^{1323210131201} is an apocalyptic number.

It is an amenable number.

1323210131201 is a deficient number, since it is larger than the sum of its proper divisors (189030018751).

1323210131201 is an equidigital number, since it uses as much as digits as its factorization.

1323210131201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189030018750.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1323210131201 its reverse (1021310123231), we get a palindrome (2344520254432).

The spelling of 1323210131201 in words is "one trillion, three hundred twenty-three billion, two hundred ten million, one hundred thirty-one thousand, two hundred one".