21303200801 has 2 divisors, whose sum is σ = 21303200802. Its totient is φ = 21303200800.

The previous prime is 21303200773. The next prime is 21303200873. The reversal of 21303200801 is 10800230312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18102357025 + 3200843776 = 134545^2 + 56576^2 .

It is a cyclic number.

It is not a de Polignac number, because 21303200801 - 2³⁴ = 4123331617 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (21303202801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10651600400 + 10651600401.

It is an arithmetic number, because the mean of its divisors is an integer number (10651600401).

Almost surely, 2^21303200801 is an apocalyptic number.

It is an amenable number.

21303200801 is a deficient number, since it is larger than the sum of its proper divisors (1).

21303200801 is an equidigital number, since it uses as much as digits as its factorization.

21303200801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The spelling of 21303200801 in words is "twenty-one billion, three hundred three million, two hundred thousand, eight hundred one".