21414432023 has 2 divisors, whose sum is σ = 21414432024. Its totient is φ = 21414432022.

The previous prime is 21414432001. The next prime is 21414432031. The reversal of 21414432023 is 32023441412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21414432023 - 2⁸ = 21414431767 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 21414431983 and 21414432001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21414432323) 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, 10707216011 + 10707216012.

It is an arithmetic number, because the mean of its divisors is an integer number (10707216012).

Almost surely, 2^21414432023 is an apocalyptic number.

21414432023 is a deficient number, since it is larger than the sum of its proper divisors (1).

21414432023 is an equidigital number, since it uses as much as digits as its factorization.

21414432023 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 26.

Adding to 21414432023 its reverse (32023441412), we get a palindrome (53437873435).

The spelling of 21414432023 in words is "twenty-one billion, four hundred fourteen million, four hundred thirty-two thousand, twenty-three".