21343362367 has 2 divisors, whose sum is σ = 21343362368. Its totient is φ = 21343362366.

The previous prime is 21343362343. The next prime is 21343362373. The reversal of 21343362367 is 76326334312.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21343362367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21343362167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10671681183 + 10671681184.

It is an arithmetic number, because the mean of its divisors is an integer number (10671681184).

Almost surely, 2^21343362367 is an apocalyptic number.

21343362367 is a deficient number, since it is larger than the sum of its proper divisors (1).

21343362367 is an equidigital number, since it uses as much as digits as its factorization.

21343362367 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 40.

Adding to 21343362367 its reverse (76326334312), we get a palindrome (97669696679).

The spelling of 21343362367 in words is "twenty-one billion, three hundred forty-three million, three hundred sixty-two thousand, three hundred sixty-seven".