21201301 has 8 divisors (see below), whose sum is σ = 23346144. Its totient is φ = 19092720.

The previous prime is 21201293. The next prime is 21201311. The reversal of 21201301 is 10310212.

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 21201301 - 2³ = 21201293 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 (21201311) 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, 7830 + ... + 10183.

It is an arithmetic number, because the mean of its divisors is an integer number (2918268).

Almost surely, 2^21201301 is an apocalyptic number.

It is an amenable number.

21201301 is a deficient number, since it is larger than the sum of its proper divisors (2144843).

21201301 is a wasteful number, since it uses less digits than its factorization.

21201301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18131.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 21201301 is about 4604.4870506931. The cubic root of 21201301 is about 276.7711621212.

Adding to 21201301 its reverse (10310212), we get a palindrome (31511513).

The spelling of 21201301 in words is "twenty-one million, two hundred one thousand, three hundred one".