12331210231 has 2 divisors, whose sum is σ = 12331210232. Its totient is φ = 12331210230.

The previous prime is 12331210189. The next prime is 12331210237. The reversal of 12331210231 is 13201213321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12331210231 - 2²¹ = 12329113079 is a prime.

It is a super-2 number, since 2×12331210231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12331210199 and 12331210208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12331210237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6165605115 + 6165605116.

It is an arithmetic number, because the mean of its divisors is an integer number (6165605116).

Almost surely, 2^12331210231 is an apocalyptic number.

12331210231 is a deficient number, since it is larger than the sum of its proper divisors (1).

12331210231 is an equidigital number, since it uses as much as digits as its factorization.

12331210231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12331210231 its reverse (13201213321), we get a palindrome (25532423552).

The spelling of 12331210231 in words is "twelve billion, three hundred thirty-one million, two hundred ten thousand, two hundred thirty-one".