12124231231 has 8 divisors (see below), whose sum is σ = 14334066720. Its totient is φ = 10033846368.

The previous prime is 12124231183. The next prime is 12124231267. The reversal of 12124231231 is 13213242121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-12124231231 is a prime.

It is a super-2 number, since 2×12124231231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12124234231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29862436 + ... + 29862841.

It is an arithmetic number, because the mean of its divisors is an integer number (1791758340).

Almost surely, 2^12124231231 is an apocalyptic number.

12124231231 is a deficient number, since it is larger than the sum of its proper divisors (2209835489).

12124231231 is an equidigital number, since it uses as much as digits as its factorization.

12124231231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59725313.

The product of its digits is 576, while the sum is 22.

Adding to 12124231231 its reverse (13213242121), we get a palindrome (25337473352).

The spelling of 12124231231 in words is "twelve billion, one hundred twenty-four million, two hundred thirty-one thousand, two hundred thirty-one".