12031301213323 has 4 divisors (see below), whose sum is σ = 13750058529520. Its totient is φ = 10312543897128.

The previous prime is 12031301213303. The next prime is 12031301213453. The reversal of 12031301213323 is 32331210313021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12031301213323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12031301213303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 859378658088 + ... + 859378658101.

It is an arithmetic number, because the mean of its divisors is an integer number (3437514632380).

Almost surely, 2^{12031301213323} is an apocalyptic number.

12031301213323 is a deficient number, since it is larger than the sum of its proper divisors (1718757316197).

12031301213323 is an equidigital number, since it uses as much as digits as its factorization.

12031301213323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718757316196.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 12031301213323 its reverse (32331210313021), we get a palindrome (44362511526344).

The spelling of 12031301213323 in words is "twelve trillion, thirty-one billion, three hundred one million, two hundred thirteen thousand, three hundred twenty-three".