12113432231 has 2 divisors, whose sum is σ = 12113432232. Its totient is φ = 12113432230.

The previous prime is 12113432167. The next prime is 12113432237. The reversal of 12113432231 is 13223431121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12113432231 - 2⁶ = 12113432167 is a prime.

It is a super-2 number, since 2×12113432231² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 12113432197 and 12113432206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12113432237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6056716115 + 6056716116.

It is an arithmetic number, because the mean of its divisors is an integer number (6056716116).

Almost surely, 2^12113432231 is an apocalyptic number.

12113432231 is a deficient number, since it is larger than the sum of its proper divisors (1).

12113432231 is an equidigital number, since it uses as much as digits as its factorization.

12113432231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 23.

Adding to 12113432231 its reverse (13223431121), we get a palindrome (25336863352).

The spelling of 12113432231 in words is "twelve billion, one hundred thirteen million, four hundred thirty-two thousand, two hundred thirty-one".