2313033211221 has 4 divisors (see below), whose sum is σ = 3084044281632. Its totient is φ = 1542022140812.

The previous prime is 2313033211169. The next prime is 2313033211259. The reversal of 2313033211221 is 1221123303132.

2313033211221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2313033211221 - 2¹⁰ = 2313033210197 is a prime.

It is a super-2 number, since 2×2313033211221² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2313033211191 and 2313033211200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2313033212221) 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, 385505535201 + ... + 385505535206.

It is an arithmetic number, because the mean of its divisors is an integer number (771011070408).

Almost surely, 2^{2313033211221} is an apocalyptic number.

It is an amenable number.

2313033211221 is a deficient number, since it is larger than the sum of its proper divisors (771011070411).

2313033211221 is an equidigital number, since it uses as much as digits as its factorization.

2313033211221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771011070410.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 2313033211221 its reverse (1221123303132), we get a palindrome (3534156514353).

The spelling of 2313033211221 in words is "two trillion, three hundred thirteen billion, thirty-three million, two hundred eleven thousand, two hundred twenty-one".