21231031201333 has 8 divisors (see below), whose sum is σ = 22348771934400. Its totient is φ = 20113322272128.

The previous prime is 21231031201313. The next prime is 21231031201357. The reversal of 21231031201333 is 33310213013212.

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 21231031201333 - 2⁵ = 21231031201301 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21231031201298 and 21231031201307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21231031201313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6574588 + ... + 9256741.

It is an arithmetic number, because the mean of its divisors is an integer number (2793596491800).

Almost surely, 2^{21231031201333} is an apocalyptic number.

It is an amenable number.

21231031201333 is a deficient number, since it is larger than the sum of its proper divisors (1117740733067).

21231031201333 is a wasteful number, since it uses less digits than its factorization.

21231031201333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15901931.

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

Adding to 21231031201333 its reverse (33310213013212), we get a palindrome (54541244214545).

The spelling of 21231031201333 in words is "twenty-one trillion, two hundred thirty-one billion, thirty-one million, two hundred one thousand, three hundred thirty-three".