21414414323 has 2 divisors, whose sum is σ = 21414414324. Its totient is φ = 21414414322.

The previous prime is 21414414313. The next prime is 21414414377. The reversal of 21414414323 is 32341441412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21414414323 - 2³² = 17119447027 is a prime.

It is not a weakly prime, because it can be changed into another prime (21414414313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10707207161 + 10707207162.

It is an arithmetic number, because the mean of its divisors is an integer number (10707207162).

Almost surely, 2^21414414323 is an apocalyptic number.

21414414323 is a deficient number, since it is larger than the sum of its proper divisors (1).

21414414323 is an equidigital number, since it uses as much as digits as its factorization.

21414414323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 29.

Adding to 21414414323 its reverse (32341441412), we get a palindrome (53755855735).

The spelling of 21414414323 in words is "twenty-one billion, four hundred fourteen million, four hundred fourteen thousand, three hundred twenty-three".