12135105255144 has 16 divisors (see below), whose sum is σ = 30337763137920. Its totient is φ = 4045035085040.

The previous prime is 12135105255109. The next prime is 12135105255227. The reversal of 12135105255144 is 44155250153121.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252814692792 + ... + 252814692839.

It is an arithmetic number, because the mean of its divisors is an integer number (1896110196120).

Almost surely, 2^{12135105255144} is an apocalyptic number.

It is an amenable number.

12135105255144 is an abundant number, since it is smaller than the sum of its proper divisors (18202657882776).

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

12135105255144 is a wasteful number, since it uses less digits than its factorization.

12135105255144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505629385640 (or 505629385636 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 39.

The spelling of 12135105255144 in words is "twelve trillion, one hundred thirty-five billion, one hundred five million, two hundred fifty-five thousand, one hundred forty-four".