21741963203 has 2 divisors, whose sum is σ = 21741963204. Its totient is φ = 21741963202.

The previous prime is 21741963197. The next prime is 21741963311. The reversal of 21741963203 is 30236914712.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21741963203 - 2⁸ = 21741962947 is a prime.

It is not a weakly prime, because it can be changed into another prime (21741963403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10870981601 + 10870981602.

It is an arithmetic number, because the mean of its divisors is an integer number (10870981602).

Almost surely, 2^21741963203 is an apocalyptic number.

21741963203 is a deficient number, since it is larger than the sum of its proper divisors (1).

21741963203 is an equidigital number, since it uses as much as digits as its factorization.

21741963203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 38.

The spelling of 21741963203 in words is "twenty-one billion, seven hundred forty-one million, nine hundred sixty-three thousand, two hundred three".