13323320231 has 16 divisors (see below), whose sum is σ = 14433098400. Its totient is φ = 12225884160.

The previous prime is 13323320167. The next prime is 13323320237. The reversal of 13323320231 is 13202332331.

It is a cyclic number.

It is not a de Polignac number, because 13323320231 - 2⁶ = 13323320167 is a prime.

It is a super-2 number, since 2×13323320231² (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 = 13323320197 and 13323320206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13323320237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1636136 + ... + 1644258.

It is an arithmetic number, because the mean of its divisors is an integer number (902068650).

Almost surely, 2^13323320231 is an apocalyptic number.

13323320231 is a deficient number, since it is larger than the sum of its proper divisors (1109778169).

13323320231 is a wasteful number, since it uses less digits than its factorization.

13323320231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8866.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 13323320231 its reverse (13202332331), we get a palindrome (26525652562).

The spelling of 13323320231 in words is "thirteen billion, three hundred twenty-three million, three hundred twenty thousand, two hundred thirty-one".