2313323211221 has 8 divisors (see below), whose sum is σ = 2523639919104. Its totient is φ = 2103008936320.

The previous prime is 2313323211209. The next prime is 2313323211239. The reversal of 2313323211221 is 1221123233132.

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-2313323211221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2313323211281) 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 7 ways as a sum of consecutive naturals, for example, 1791500 + ... + 2799306.

It is an arithmetic number, because the mean of its divisors is an integer number (315454989888).

Almost surely, 2^{2313323211221} is an apocalyptic number.

It is an amenable number.

2313323211221 is a deficient number, since it is larger than the sum of its proper divisors (210316707883).

2313323211221 is a wasteful number, since it uses less digits than its factorization.

2313323211221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216491.

The product of its digits is 2592, while the sum is 26.

Adding to 2313323211221 its reverse (1221123233132), we get a palindrome (3534446444353).

The spelling of 2313323211221 in words is "two trillion, three hundred thirteen billion, three hundred twenty-three million, two hundred eleven thousand, two hundred twenty-one".