21343114567 has 2 divisors, whose sum is σ = 21343114568. Its totient is φ = 21343114566.

The previous prime is 21343114531. The next prime is 21343114603. The reversal of 21343114567 is 76541134312.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (21343114531) and next prime (21343114603).

It is a cyclic number.

It is not a de Polignac number, because 21343114567 - 2²³ = 21334725959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21343114867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10671557283 + 10671557284.

It is an arithmetic number, because the mean of its divisors is an integer number (10671557284).

Almost surely, 2^21343114567 is an apocalyptic number.

21343114567 is a deficient number, since it is larger than the sum of its proper divisors (1).

21343114567 is an equidigital number, since it uses as much as digits as its factorization.

21343114567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 37.

Adding to 21343114567 its reverse (76541134312), we get a palindrome (97884248879).

The spelling of 21343114567 in words is "twenty-one billion, three hundred forty-three million, one hundred fourteen thousand, five hundred sixty-seven".