21343100963 has 2 divisors, whose sum is σ = 21343100964. Its totient is φ = 21343100962.

The previous prime is 21343100941. The next prime is 21343100969. The reversal of 21343100963 is 36900134312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21343100963 - 2⁶ = 21343100899 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (21343100969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10671550481 + 10671550482.

It is an arithmetic number, because the mean of its divisors is an integer number (10671550482).

Almost surely, 2^21343100963 is an apocalyptic number.

21343100963 is a deficient number, since it is larger than the sum of its proper divisors (1).

21343100963 is an equidigital number, since it uses as much as digits as its factorization.

21343100963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 32.

The spelling of 21343100963 in words is "twenty-one billion, three hundred forty-three million, one hundred thousand, nine hundred sixty-three".