21321202301 has 8 divisors (see below), whose sum is σ = 24422597760. Its totient is φ = 18233684208.

The previous prime is 21321202297. The next prime is 21321202303. The reversal of 21321202301 is 10320212312.

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 21321202301 - 2² = 21321202297 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 21321202301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21321202303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3466046 + ... + 3472191.

It is an arithmetic number, because the mean of its divisors is an integer number (3052824720).

Almost surely, 2^21321202301 is an apocalyptic number.

It is an amenable number.

21321202301 is a deficient number, since it is larger than the sum of its proper divisors (3101395459).

21321202301 is an equidigital number, since it uses as much as digits as its factorization.

21321202301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6938683.

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

Adding to 21321202301 its reverse (10320212312), we get a palindrome (31641414613).

The spelling of 21321202301 in words is "twenty-one billion, three hundred twenty-one million, two hundred two thousand, three hundred one".