21304201301 has 8 divisors (see below), whose sum is σ = 21345098040. Its totient is φ = 21263343552.

The previous prime is 21304201297. The next prime is 21304201309. The reversal of 21304201301 is 10310240312.

It can be written as a sum of positive squares in 4 ways, for example, as 8798252401 + 12505948900 = 93799^2 + 111830^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21304201301 - 2² = 21304201297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21304201301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21304201309) 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 in 7 ways as a sum of consecutive naturals, for example, 1230815 + ... + 1248003.

It is an arithmetic number, because the mean of its divisors is an integer number (2668137255).

Almost surely, 2^21304201301 is an apocalyptic number.

It is an amenable number.

21304201301 is a deficient number, since it is larger than the sum of its proper divisors (40896739).

21304201301 is a wasteful number, since it uses less digits than its factorization.

21304201301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19495.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21304201301 its reverse (10310240312), we get a palindrome (31614441613).

The spelling of 21304201301 in words is "twenty-one billion, three hundred four million, two hundred one thousand, three hundred one".