12231303131123 has 16 divisors (see below), whose sum is σ = 12687087537600. Its totient is φ = 11777828388480.

The previous prime is 12231303131111. The next prime is 12231303131147. The reversal of 12231303131123 is 32113130313221.

It is a cyclic number.

It is not a de Polignac number, because 12231303131123 - 2¹⁶ = 12231303065587 is a prime.

It is a super-2 number, since 2×12231303131123² (a number of 27 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 = 12231303131092 and 12231303131101.

It is not an unprimeable number, because it can be changed into a prime (12231303131183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15977138 + ... + 16725176.

It is an arithmetic number, because the mean of its divisors is an integer number (792942971100).

Almost surely, 2^{12231303131123} is an apocalyptic number.

12231303131123 is a deficient number, since it is larger than the sum of its proper divisors (455784406477).

12231303131123 is an equidigital number, since it uses as much as digits as its factorization.

12231303131123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749582.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 12231303131123 its reverse (32113130313221), we get a palindrome (44344433444344).

The spelling of 12231303131123 in words is "twelve trillion, two hundred thirty-one billion, three hundred three million, one hundred thirty-one thousand, one hundred twenty-three".