13233122231 has 24 divisors (see below), whose sum is σ = 15622830864. Its totient is φ = 11174163840.

The previous prime is 13233122191. The next prime is 13233122233. The reversal of 13233122231 is 13222133231.

It is not a de Polignac number, because 13233122231 - 2¹⁰ = 13233121207 is a prime.

It is a super-2 number, since 2×13233122231² (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 = 13233122197 and 13233122206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13233122233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4158461 + ... + 4161641.

It is an arithmetic number, because the mean of its divisors is an integer number (650951286).

Almost surely, 2^13233122231 is an apocalyptic number.

13233122231 is a deficient number, since it is larger than the sum of its proper divisors (2389708633).

13233122231 is a wasteful number, since it uses less digits than its factorization.

13233122231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4431 (or 4424 counting only the distinct ones).

The product of its digits is 1296, while the sum is 23.

Adding to 13233122231 its reverse (13222133231), we get a palindrome (26455255462).

The spelling of 13233122231 in words is "thirteen billion, two hundred thirty-three million, one hundred twenty-two thousand, two hundred thirty-one".