21301012301 has 4 divisors (see below), whose sum is σ = 21307974204. Its totient is φ = 21294050400.

The previous prime is 21301012289. The next prime is 21301012321. The reversal of 21301012301 is 10321010312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17835335401 + 3465676900 = 133549^2 + 58870^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21301012301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21301012321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3476360 + ... + 3482481.

It is an arithmetic number, because the mean of its divisors is an integer number (5326993551).

Almost surely, 2^21301012301 is an apocalyptic number.

It is an amenable number.

21301012301 is a deficient number, since it is larger than the sum of its proper divisors (6961903).

21301012301 is an equidigital number, since it uses as much as digits as its factorization.

21301012301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6961902.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 21301012301 its reverse (10321010312), we get a palindrome (31622022613).

The spelling of 21301012301 in words is "twenty-one billion, three hundred one million, twelve thousand, three hundred one".