12312140323 has 4 divisors (see below), whose sum is σ = 14071017520. Its totient is φ = 10553263128.

The previous prime is 12312140261. The next prime is 12312140339. The reversal of 12312140323 is 32304121321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32304121321 = 115019 ⋅280859.

It is a cyclic number.

It is not a de Polignac number, because 12312140323 - 2⁹ = 12312139811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12312140294 and 12312140303.

It is not an unprimeable number, because it can be changed into a prime (12312120323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 879438588 + ... + 879438601.

It is an arithmetic number, because the mean of its divisors is an integer number (3517754380).

Almost surely, 2^12312140323 is an apocalyptic number.

12312140323 is a deficient number, since it is larger than the sum of its proper divisors (1758877197).

12312140323 is an equidigital number, since it uses as much as digits as its factorization.

12312140323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1758877196.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 12312140323 its reverse (32304121321), we get a palindrome (44616261644).

The spelling of 12312140323 in words is "twelve billion, three hundred twelve million, one hundred forty thousand, three hundred twenty-three".