123012133123312 has 40 divisors (see below), whose sum is σ = 247201061592672. Its totient is φ = 59251228128000.

The previous prime is 123012133123289. The next prime is 123012133123421. The reversal of 123012133123312 is 213321331210321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1028607364 + ... + 1028726947.

Almost surely, 2^{123012133123312} is an apocalyptic number.

It is an amenable number.

123012133123312 is an abundant number, since it is smaller than the sum of its proper divisors (124188928469360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123012133123312 is a wasteful number, since it uses less digits than its factorization.

123012133123312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2057334457 (or 2057334451 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 123012133123312 its reverse (213321331210321), we get a palindrome (336333464333633).

The spelling of 123012133123312 in words is "one hundred twenty-three trillion, twelve billion, one hundred thirty-three million, one hundred twenty-three thousand, three hundred twelve".