2443230421321 has 2 divisors, whose sum is σ = 2443230421322. Its totient is φ = 2443230421320.

The previous prime is 2443230421309. The next prime is 2443230421339. The reversal of 2443230421321 is 1231240323442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2312866097721 + 130364323600 = 1520811^2 + 361060^2 .

It is a cyclic number.

It is not a de Polignac number, because 2443230421321 - 2⁷ = 2443230421193 is a prime.

It is not a weakly prime, because it can be changed into another prime (2443230421301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1221615210660 + 1221615210661.

It is an arithmetic number, because the mean of its divisors is an integer number (1221615210661).

Almost surely, 2^{2443230421321} is an apocalyptic number.

It is an amenable number.

2443230421321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2443230421321 is an equidigital number, since it uses as much as digits as its factorization.

2443230421321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 2443230421321 its reverse (1231240323442), we get a palindrome (3674470744763).

The spelling of 2443230421321 in words is "two trillion, four hundred forty-three billion, two hundred thirty million, four hundred twenty-one thousand, three hundred twenty-one".