13233032231 has 4 divisors (see below), whose sum is σ = 13233738600. Its totient is φ = 13232325864.

The previous prime is 13233032227. The next prime is 13233032251. The reversal of 13233032231 is 13223033231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13223033231 = 1489 ⋅8880479.

It is a cyclic number.

It is not a de Polignac number, because 13233032231 - 2² = 13233032227 is a prime.

It is a super-2 number, since 2×13233032231² (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 = 13233032197 and 13233032206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13233032251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324296 + ... + 362813.

It is an arithmetic number, because the mean of its divisors is an integer number (3308434650).

Almost surely, 2^13233032231 is an apocalyptic number.

13233032231 is a deficient number, since it is larger than the sum of its proper divisors (706369).

13233032231 is an equidigital number, since it uses as much as digits as its factorization.

13233032231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706368.

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

Adding to 13233032231 its reverse (13223033231), we get a palindrome (26456065462).

The spelling of 13233032231 in words is "thirteen billion, two hundred thirty-three million, thirty-two thousand, two hundred thirty-one".