2313244131221 has 2 divisors, whose sum is σ = 2313244131222. Its totient is φ = 2313244131220.

The previous prime is 2313244131181. The next prime is 2313244131227. The reversal of 2313244131221 is 1221314423132.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1848270159121 + 464973972100 = 1359511^2 + 681890^2 .

It is a cyclic number.

It is not a de Polignac number, because 2313244131221 - 2¹⁴ = 2313244114837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2313244131227) 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 as a sum of consecutive naturals, namely, 1156622065610 + 1156622065611.

It is an arithmetic number, because the mean of its divisors is an integer number (1156622065611).

Almost surely, 2^{2313244131221} is an apocalyptic number.

It is an amenable number.

2313244131221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2313244131221 is an equidigital number, since it uses as much as digits as its factorization.

2313244131221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 29.

Adding to 2313244131221 its reverse (1221314423132), we get a palindrome (3534558554353).

The spelling of 2313244131221 in words is "two trillion, three hundred thirteen billion, two hundred forty-four million, one hundred thirty-one thousand, two hundred twenty-one".