21004431301 has 8 divisors (see below), whose sum is σ = 24083259200. Its totient is φ = 17945152128.

The previous prime is 21004431293. The next prime is 21004431317. The reversal of 21004431301 is 10313440012.

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 21004431301 - 2³ = 21004431293 is a prime.

It is a super-2 number, since 2×21004431301² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21004431901) 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, 4884876 + ... + 4889173.

It is an arithmetic number, because the mean of its divisors is an integer number (3010407400).

Almost surely, 2^21004431301 is an apocalyptic number.

It is an amenable number.

21004431301 is a deficient number, since it is larger than the sum of its proper divisors (3078827899).

21004431301 is an equidigital number, since it uses as much as digits as its factorization.

21004431301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9774363.

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

Adding to 21004431301 its reverse (10313440012), we get a palindrome (31317871313).

The spelling of 21004431301 in words is "twenty-one billion, four million, four hundred thirty-one thousand, three hundred one".