21411014413 has 2 divisors, whose sum is σ = 21411014414. Its totient is φ = 21411014412.

The previous prime is 21411014411. The next prime is 21411014441. The reversal of 21411014413 is 31441011412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19623246889 + 1787767524 = 140083^2 + 42282^2 .

It is a cyclic number.

It is not a de Polignac number, because 21411014413 - 2¹ = 21411014411 is a prime.

Together with 21411014411, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21411014411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10705507206 + 10705507207.

It is an arithmetic number, because the mean of its divisors is an integer number (10705507207).

Almost surely, 2^21411014413 is an apocalyptic number.

It is an amenable number.

21411014413 is a deficient number, since it is larger than the sum of its proper divisors (1).

21411014413 is an equidigital number, since it uses as much as digits as its factorization.

21411014413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 21411014413 its reverse (31441011412), we get a palindrome (52852025825).

The spelling of 21411014413 in words is "twenty-one billion, four hundred eleven million, fourteen thousand, four hundred thirteen".