123120320330012 has 12 divisors (see below), whose sum is σ = 222410901241536. Its totient is φ = 59574348546720.

The previous prime is 123120320329969. The next prime is 123120320330071. The reversal of 123120320330012 is 210033023021321.

It is a super-2 number, since 2×123120320330012² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123120320330012.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 496452904433 + ... + 496452904680.

It is an arithmetic number, because the mean of its divisors is an integer number (18534241770128).

Almost surely, 2^{123120320330012} is an apocalyptic number.

It is an amenable number.

123120320330012 is a deficient number, since it is larger than the sum of its proper divisors (99290580911524).

123120320330012 is a wasteful number, since it uses less digits than its factorization.

123120320330012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992905809148 (or 992905809146 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 123120320330012 its reverse (210033023021321), we get a palindrome (333153343351333).

The spelling of 123120320330012 in words is "one hundred twenty-three trillion, one hundred twenty billion, three hundred twenty million, three hundred thirty thousand, twelve".