21313321033201 has 8 divisors (see below), whose sum is σ = 21357376977600. Its totient is φ = 21269267723760.

The previous prime is 21313321033141. The next prime is 21313321033219. The reversal of 21313321033201 is 10233012331312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21313321033201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21313321033241) 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, 15968460 + ... + 17251618.

It is an arithmetic number, because the mean of its divisors is an integer number (2669672122200).

Almost surely, 2^{21313321033201} is an apocalyptic number.

It is an amenable number.

21313321033201 is a deficient number, since it is larger than the sum of its proper divisors (44055944399).

21313321033201 is a wasteful number, since it uses less digits than its factorization.

21313321033201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317479.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 21313321033201 its reverse (10233012331312), we get a palindrome (31546333364513).

The spelling of 21313321033201 in words is "twenty-one trillion, three hundred thirteen billion, three hundred twenty-one million, thirty-three thousand, two hundred one".