12235033231 has 4 divisors (see below), whose sum is σ = 12235360392. Its totient is φ = 12234706072.

The previous prime is 12235033207. The next prime is 12235033259. The reversal of 12235033231 is 13233053221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12235033231 - 2¹⁹ = 12234508943 is a prime.

It is a super-2 number, since 2×12235033231² (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 = 12235033196 and 12235033205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12235033631) 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, 98980 + ... + 185113.

It is an arithmetic number, because the mean of its divisors is an integer number (3058840098).

Almost surely, 2^12235033231 is an apocalyptic number.

12235033231 is a deficient number, since it is larger than the sum of its proper divisors (327161).

12235033231 is an equidigital number, since it uses as much as digits as its factorization.

12235033231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327160.

The product of its (nonzero) digits is 3240, while the sum is 25.

Adding to 12235033231 its reverse (13233053221), we get a palindrome (25468086452).

The spelling of 12235033231 in words is "twelve billion, two hundred thirty-five million, thirty-three thousand, two hundred thirty-one".