12123705750154 has 32 divisors (see below), whose sum is σ = 18328853321856. Its totient is φ = 6014192716800.

The previous prime is 12123705750109. The next prime is 12123705750161. The reversal of 12123705750154 is 45105750732121.

It is a super-2 number, since 2×12123705750154² (a number of 27 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 12123705750154.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1153205602 + ... + 1153216114.

It is an arithmetic number, because the mean of its divisors is an integer number (572776666308).

Almost surely, 2^{12123705750154} is an apocalyptic number.

12123705750154 is a deficient number, since it is larger than the sum of its proper divisors (6205147571702).

12123705750154 is a wasteful number, since it uses less digits than its factorization.

12123705750154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15070.

The product of its (nonzero) digits is 294000, while the sum is 43.

The spelling of 12123705750154 in words is "twelve trillion, one hundred twenty-three billion, seven hundred five million, seven hundred fifty thousand, one hundred fifty-four".