13330021231 has 8 divisors (see below), whose sum is σ = 13615499520. Its totient is φ = 13044620568.

The previous prime is 13330021193. The next prime is 13330021241. The reversal of 13330021231 is 13212003331.

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 13330021231 - 2⁹ = 13330020719 is a prime.

It is a super-2 number, since 2×13330021231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13330021199 and 13330021208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13330021241) 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, 445500 + ... + 474478.

It is an arithmetic number, because the mean of its divisors is an integer number (1701937440).

Almost surely, 2^13330021231 is an apocalyptic number.

13330021231 is a deficient number, since it is larger than the sum of its proper divisors (285478289).

13330021231 is an equidigital number, since it uses as much as digits as its factorization.

13330021231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38813.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 13330021231 its reverse (13212003331), we get a palindrome (26542024562).

The spelling of 13330021231 in words is "thirteen billion, three hundred thirty million, twenty-one thousand, two hundred thirty-one".