21343103323 has 2 divisors, whose sum is σ = 21343103324. Its totient is φ = 21343103322.

The previous prime is 21343103317. The next prime is 21343103329. The reversal of 21343103323 is 32330134312.

It is a balanced prime because it is at equal distance from previous prime (21343103317) and next prime (21343103329).

It is a cyclic number.

It is not a de Polignac number, because 21343103323 - 2²⁵ = 21309548891 is a prime.

It is not a weakly prime, because it can be changed into another prime (21343103329) 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, 10671551661 + 10671551662.

It is an arithmetic number, because the mean of its divisors is an integer number (10671551662).

Almost surely, 2^21343103323 is an apocalyptic number.

21343103323 is a deficient number, since it is larger than the sum of its proper divisors (1).

21343103323 is an equidigital number, since it uses as much as digits as its factorization.

21343103323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 21343103323 its reverse (32330134312), we get a palindrome (53673237635).

The spelling of 21343103323 in words is "twenty-one billion, three hundred forty-three million, one hundred three thousand, three hundred twenty-three".