12530542142 has 16 divisors (see below), whose sum is σ = 19825722240. Its totient is φ = 5923323288.

The previous prime is 12530542133. The next prime is 12530542181. The reversal of 12530542142 is 24124503521.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 320048 + ... + 357059.

It is an arithmetic number, because the mean of its divisors is an integer number (1239107640).

Almost surely, 2^12530542142 is an apocalyptic number.

12530542142 is a deficient number, since it is larger than the sum of its proper divisors (7295180098).

12530542142 is a wasteful number, since it uses less digits than its factorization.

12530542142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677615.

The product of its (nonzero) digits is 9600, while the sum is 29.

The spelling of 12530542142 in words is "twelve billion, five hundred thirty million, five hundred forty-two thousand, one hundred forty-two".