21010200983 has 2 divisors, whose sum is σ = 21010200984. Its totient is φ = 21010200982.

The previous prime is 21010200979. The next prime is 21010201013. The reversal of 21010200983 is 38900201012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21010200983 - 2² = 21010200979 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21010200283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10505100491 + 10505100492.

It is an arithmetic number, because the mean of its divisors is an integer number (10505100492).

Almost surely, 2^21010200983 is an apocalyptic number.

21010200983 is a deficient number, since it is larger than the sum of its proper divisors (1).

21010200983 is an equidigital number, since it uses as much as digits as its factorization.

21010200983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

Adding to 21010200983 its reverse (38900201012), we get a palindrome (59910401995).

The spelling of 21010200983 in words is "twenty-one billion, ten million, two hundred thousand, nine hundred eighty-three".