21014314423 has 2 divisors, whose sum is σ = 21014314424. Its totient is φ = 21014314422.

The previous prime is 21014314417. The next prime is 21014314429. The reversal of 21014314423 is 32441341012.

It is a balanced prime because it is at equal distance from previous prime (21014314417) and next prime (21014314429).

It is a cyclic number.

It is not a de Polignac number, because 21014314423 - 2¹³ = 21014306231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21014314429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10507157211 + 10507157212.

It is an arithmetic number, because the mean of its divisors is an integer number (10507157212).

Almost surely, 2^21014314423 is an apocalyptic number.

21014314423 is a deficient number, since it is larger than the sum of its proper divisors (1).

21014314423 is an equidigital number, since it uses as much as digits as its factorization.

21014314423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 21014314423 its reverse (32441341012), we get a palindrome (53455655435).

The spelling of 21014314423 in words is "twenty-one billion, fourteen million, three hundred fourteen thousand, four hundred twenty-three".