21532000201 has 2 divisors, whose sum is σ = 21532000202. Its totient is φ = 21532000200.

The previous prime is 21532000177. The next prime is 21532000207. The reversal of 21532000201 is 10200023512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11117593600 + 10414406601 = 105440^2 + 102051^2 .

It is a cyclic number.

It is not a de Polignac number, because 21532000201 - 2⁵ = 21532000169 is a prime.

It is not a weakly prime, because it can be changed into another prime (21532000207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10766000100 + 10766000101.

It is an arithmetic number, because the mean of its divisors is an integer number (10766000101).

Almost surely, 2^21532000201 is an apocalyptic number.

It is an amenable number.

21532000201 is a deficient number, since it is larger than the sum of its proper divisors (1).

21532000201 is an equidigital number, since it uses as much as digits as its factorization.

21532000201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 16.

Adding to 21532000201 its reverse (10200023512), we get a palindrome (31732023713).

The spelling of 21532000201 in words is "twenty-one billion, five hundred thirty-two million, two hundred one", and thus it is an aban number.