2231310022321 has 4 divisors (see below), whose sum is σ = 2231397096292. Its totient is φ = 2231222948352.

The previous prime is 2231310022273. The next prime is 2231310022411. The reversal of 2231310022321 is 1232200131322.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 329517329296 + 1901792693025 = 574036^2 + 1379055^2 .

It is a cyclic number.

It is not a de Polignac number, because 2231310022321 - 2⁴¹ = 32286766769 is a prime.

It is a super-3 number, since 3×2231310022321³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2231310022292 and 2231310022301.

It is not an unprimeable number, because it can be changed into a prime (2231310322321) 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, 43498536 + ... + 43549801.

It is an arithmetic number, because the mean of its divisors is an integer number (557849274073).

Almost surely, 2^{2231310022321} is an apocalyptic number.

It is an amenable number.

2231310022321 is a deficient number, since it is larger than the sum of its proper divisors (87073971).

2231310022321 is an equidigital number, since it uses as much as digits as its factorization.

2231310022321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87073970.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2231310022321 its reverse (1232200131322), we get a palindrome (3463510153643).

The spelling of 2231310022321 in words is "two trillion, two hundred thirty-one billion, three hundred ten million, twenty-two thousand, three hundred twenty-one".