21304140301 has 2 divisors, whose sum is σ = 21304140302. Its totient is φ = 21304140300.

The previous prime is 21304140259. The next prime is 21304140329. The reversal of 21304140301 is 10304140312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20513687076 + 790453225 = 143226^2 + 28115^2 .

It is a cyclic number.

It is not a de Polignac number, because 21304140301 - 2⁷ = 21304140173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21304140331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10652070150 + 10652070151.

It is an arithmetic number, because the mean of its divisors is an integer number (10652070151).

Almost surely, 2^21304140301 is an apocalyptic number.

It is an amenable number.

21304140301 is a deficient number, since it is larger than the sum of its proper divisors (1).

21304140301 is an equidigital number, since it uses as much as digits as its factorization.

21304140301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21304140301 its reverse (10304140312), we get a palindrome (31608280613).

The spelling of 21304140301 in words is "twenty-one billion, three hundred four million, one hundred forty thousand, three hundred one".