21301333001 has 8 divisors (see below), whose sum is σ = 23013191880. Its totient is φ = 19599944832.

The previous prime is 21301332971. The next prime is 21301333019. The reversal of 21301333001 is 10033310312.

It can be written as a sum of positive squares in 4 ways, for example, as 3691777600 + 17609555401 = 60760^2 + 132701^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-21301333001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21301333021) 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, 2613446 + ... + 2621583.

It is an arithmetic number, because the mean of its divisors is an integer number (2876648985).

Almost surely, 2^21301333001 is an apocalyptic number.

It is an amenable number.

21301333001 is a deficient number, since it is larger than the sum of its proper divisors (1711858879).

21301333001 is a wasteful number, since it uses less digits than its factorization.

21301333001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5235355.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 21301333001 its reverse (10033310312), we get a palindrome (31334643313).

The spelling of 21301333001 in words is "twenty-one billion, three hundred one million, three hundred thirty-three thousand, one".