21414213332423 has 2 divisors, whose sum is σ = 21414213332424. Its totient is φ = 21414213332422.

The previous prime is 21414213332401. The next prime is 21414213332429. The reversal of 21414213332423 is 32423331241412.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21414213332423 - 2¹⁴ = 21414213316039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21414213332429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10707106666211 + 10707106666212.

It is an arithmetic number, because the mean of its divisors is an integer number (10707106666212).

Almost surely, 2^{21414213332423} is an apocalyptic number.

21414213332423 is a deficient number, since it is larger than the sum of its proper divisors (1).

21414213332423 is an equidigital number, since it uses as much as digits as its factorization.

21414213332423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 35.

Adding to 21414213332423 its reverse (32423331241412), we get a palindrome (53837544573835).

The spelling of 21414213332423 in words is "twenty-one trillion, four hundred fourteen billion, two hundred thirteen million, three hundred thirty-two thousand, four hundred twenty-three".