21304054301 has 2 divisors, whose sum is σ = 21304054302. Its totient is φ = 21304054300.

The previous prime is 21304054283. The next prime is 21304054307. The reversal of 21304054301 is 10345040312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18086215225 + 3217839076 = 134485^2 + 56726^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21304054301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21304054307) 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, 10652027150 + 10652027151.

It is an arithmetic number, because the mean of its divisors is an integer number (10652027151).

Almost surely, 2^21304054301 is an apocalyptic number.

It is an amenable number.

21304054301 is a deficient number, since it is larger than the sum of its proper divisors (1).

21304054301 is an equidigital number, since it uses as much as digits as its factorization.

21304054301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 21304054301 its reverse (10345040312), we get a palindrome (31649094613).

The spelling of 21304054301 in words is "twenty-one billion, three hundred four million, fifty-four thousand, three hundred one".