21244202963 has 2 divisors, whose sum is σ = 21244202964. Its totient is φ = 21244202962.

The previous prime is 21244202957. The next prime is 21244203037. The reversal of 21244202963 is 36920244212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21244202963 - 2¹⁰ = 21244201939 is a prime.

It is not a weakly prime, because it can be changed into another prime (21244202663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10622101481 + 10622101482.

It is an arithmetic number, because the mean of its divisors is an integer number (10622101482).

Almost surely, 2^21244202963 is an apocalyptic number.

21244202963 is a deficient number, since it is larger than the sum of its proper divisors (1).

21244202963 is an equidigital number, since it uses as much as digits as its factorization.

21244202963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 21244202963 in words is "twenty-one billion, two hundred forty-four million, two hundred two thousand, nine hundred sixty-three".