12530434542 has 16 divisors (see below), whose sum is σ = 25066288080. Its totient is φ = 4175908352.

The previous prime is 12530434519. The next prime is 12530434559. The reversal of 12530434542 is 24543403521.

It is a super-2 number, since 2×12530434542² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 195417 + ... + 251492.

It is an arithmetic number, because the mean of its divisors is an integer number (1566643005).

Almost surely, 2^12530434542 is an apocalyptic number.

12530434542 is an abundant number, since it is smaller than the sum of its proper divisors (12535853538).

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

12530434542 is a wasteful number, since it uses less digits than its factorization.

12530434542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451587.

The product of its (nonzero) digits is 57600, while the sum is 33.

The spelling of 12530434542 in words is "twelve billion, five hundred thirty million, four hundred thirty-four thousand, five hundred forty-two".