1323210313121 has 4 divisors (see below), whose sum is σ = 1392852961200. Its totient is φ = 1253567665044.

The previous prime is 1323210313093. The next prime is 1323210313123. The reversal of 1323210313121 is 1213130123231.

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 1323210313121 - 2³⁰ = 1322136571297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323210313123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34821324011 + ... + 34821324048.

It is an arithmetic number, because the mean of its divisors is an integer number (348213240300).

Almost surely, 2^{1323210313121} is an apocalyptic number.

It is an amenable number.

1323210313121 is a deficient number, since it is larger than the sum of its proper divisors (69642648079).

1323210313121 is an equidigital number, since it uses as much as digits as its factorization.

1323210313121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69642648078.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1323210313121 its reverse (1213130123231), we get a palindrome (2536340436352).

The spelling of 1323210313121 in words is "one trillion, three hundred twenty-three billion, two hundred ten million, three hundred thirteen thousand, one hundred twenty-one".