21444014001313 has 2 divisors, whose sum is σ = 21444014001314. Its totient is φ = 21444014001312.

The previous prime is 21444014001301. The next prime is 21444014001437. The reversal of 21444014001313 is 31310041044412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20286169136289 + 1157844865024 = 4504017^2 + 1076032^2 .

It is a cyclic number.

It is not a de Polignac number, because 21444014001313 - 2⁵ = 21444014001281 is a prime.

It is not a weakly prime, because it can be changed into another prime (21444014101313) 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, 10722007000656 + 10722007000657.

It is an arithmetic number, because the mean of its divisors is an integer number (10722007000657).

Almost surely, 2^{21444014001313} is an apocalyptic number.

It is an amenable number.

21444014001313 is a deficient number, since it is larger than the sum of its proper divisors (1).

21444014001313 is an equidigital number, since it uses as much as digits as its factorization.

21444014001313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 21444014001313 its reverse (31310041044412), we get a palindrome (52754055045725).

The spelling of 21444014001313 in words is "twenty-one trillion, four hundred forty-four billion, fourteen million, one thousand, three hundred thirteen".