12512045142124 has 24 divisors (see below), whose sum is σ = 23892863794128. Its totient is φ = 5685809399040.

The previous prime is 12512045142097. The next prime is 12512045142131. The reversal of 12512045142124 is 42124154021521.

It is a self number, because there is not a number n which added to its sum of digits gives 12512045142124.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36925617 + ... + 37262920.

It is an arithmetic number, because the mean of its divisors is an integer number (995535991422).

Almost surely, 2^{12512045142124} is an apocalyptic number.

It is an amenable number.

12512045142124 is a deficient number, since it is larger than the sum of its proper divisors (11380818652004).

12512045142124 is a wasteful number, since it uses less digits than its factorization.

12512045142124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74192385 (or 74192383 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 34.

Adding to 12512045142124 its reverse (42124154021521), we get a palindrome (54636199163645).

The spelling of 12512045142124 in words is "twelve trillion, five hundred twelve billion, forty-five million, one hundred forty-two thousand, one hundred twenty-four".