4431223122013 has 2 divisors, whose sum is σ = 4431223122014. Its totient is φ = 4431223122012.

The previous prime is 4431223121981. The next prime is 4431223122023. The reversal of 4431223122013 is 3102213221344.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3428415153604 + 1002807968409 = 1851598^2 + 1001403^2 .

It is a cyclic number.

It is not a de Polignac number, because 4431223122013 - 2⁵ = 4431223121981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4431223122023) 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 as a sum of consecutive naturals, namely, 2215611561006 + 2215611561007.

It is an arithmetic number, because the mean of its divisors is an integer number (2215611561007).

Almost surely, 2^{4431223122013} is an apocalyptic number.

It is an amenable number.

4431223122013 is a deficient number, since it is larger than the sum of its proper divisors (1).

4431223122013 is an equidigital number, since it uses as much as digits as its factorization.

4431223122013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 4431223122013 its reverse (3102213221344), we get a palindrome (7533436343357).

The spelling of 4431223122013 in words is "four trillion, four hundred thirty-one billion, two hundred twenty-three million, one hundred twenty-two thousand, thirteen".