12232351231 has 16 divisors (see below), whose sum is σ = 12482928640. Its totient is φ = 11984487840.

The previous prime is 12232351193. The next prime is 12232351247. The reversal of 12232351231 is 13215323221.

It is a de Polignac number, because none of the positive numbers 2^k-12232351231 is a prime.

It is a super-2 number, since 2×12232351231² (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 = 12232351196 and 12232351205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12232351331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11252770 + ... + 11253856.

It is an arithmetic number, because the mean of its divisors is an integer number (780183040).

Almost surely, 2^12232351231 is an apocalyptic number.

12232351231 is a deficient number, since it is larger than the sum of its proper divisors (250577409).

12232351231 is a wasteful number, since it uses less digits than its factorization.

12232351231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134.

The product of its digits is 2160, while the sum is 25.

Adding to 12232351231 its reverse (13215323221), we get a palindrome (25447674452).

The spelling of 12232351231 in words is "twelve billion, two hundred thirty-two million, three hundred fifty-one thousand, two hundred thirty-one".