12132310231 has 4 divisors (see below), whose sum is σ = 12132908352. Its totient is φ = 12131712112.

The previous prime is 12132310193. The next prime is 12132310237. The reversal of 12132310231 is 13201323121.

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 12132310231 - 2⁹ = 12132309719 is a prime.

It is a super-2 number, since 2×12132310231² (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 = 12132310199 and 12132310208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12132310237) 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, 267526 + ... + 309571.

It is an arithmetic number, because the mean of its divisors is an integer number (3033227088).

Almost surely, 2^12132310231 is an apocalyptic number.

12132310231 is a deficient number, since it is larger than the sum of its proper divisors (598121).

12132310231 is an equidigital number, since it uses as much as digits as its factorization.

12132310231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598120.

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

Adding to 12132310231 its reverse (13201323121), we get a palindrome (25333633352).

The spelling of 12132310231 in words is "twelve billion, one hundred thirty-two million, three hundred ten thousand, two hundred thirty-one".