12123113231330 has 32 divisors (see below), whose sum is σ = 22294128289536. Its totient is φ = 4744316104704.

The previous prime is 12123113231321. The next prime is 12123113231347. The reversal of 12123113231330 is 3313231132121.

12123113231330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12123113231330.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3491999 + ... + 6036578.

It is an arithmetic number, because the mean of its divisors is an integer number (696691509048).

Almost surely, 2^{12123113231330} is an apocalyptic number.

12123113231330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12123113231330 is a deficient number, since it is larger than the sum of its proper divisors (10171015058206).

12123113231330 is a wasteful number, since it uses less digits than its factorization.

12123113231330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9531338.

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

Adding to 12123113231330 its reverse (3313231132121), we get a palindrome (15436344363451).

The spelling of 12123113231330 in words is "twelve trillion, one hundred twenty-three billion, one hundred thirteen million, two hundred thirty-one thousand, three hundred thirty".