21414322341409 has 2 divisors, whose sum is σ = 21414322341410. Its totient is φ = 21414322341408.

The previous prime is 21414322341331. The next prime is 21414322341421. The reversal of 21414322341409 is 90414322341412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21051349830625 + 362972510784 = 4588175^2 + 602472^2 .

It is a cyclic number.

It is not a de Polignac number, because 21414322341409 - 2⁷ = 21414322341281 is a prime.

It is a super-2 number, since 2×21414322341409² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21414322341809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10707161170704 + 10707161170705.

It is an arithmetic number, because the mean of its divisors is an integer number (10707161170705).

Almost surely, 2^{21414322341409} is an apocalyptic number.

It is an amenable number.

21414322341409 is a deficient number, since it is larger than the sum of its proper divisors (1).

21414322341409 is an equidigital number, since it uses as much as digits as its factorization.

21414322341409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 21414322341409 in words is "twenty-one trillion, four hundred fourteen billion, three hundred twenty-two million, three hundred forty-one thousand, four hundred nine".