12532120424 has 32 divisors (see below), whose sum is σ = 23673323520. Its totient is φ = 6219410496.

The previous prime is 12532120387. The next prime is 12532120429. The reversal of 12532120424 is 42402123521.

It is a junction number, because it is equal to n+sod(n) for n = 12532120393 and 12532120402.

It is not an unprimeable number, because it can be changed into a prime (12532120429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 572057 + ... + 593559.

It is an arithmetic number, because the mean of its divisors is an integer number (739791360).

Almost surely, 2^12532120424 is an apocalyptic number.

It is an amenable number.

12532120424 is a deficient number, since it is larger than the sum of its proper divisors (11141203096).

12532120424 is a wasteful number, since it uses less digits than its factorization.

12532120424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22049 (or 22045 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 12532120424 its reverse (42402123521), we get a palindrome (54934243945).

The spelling of 12532120424 in words is "twelve billion, five hundred thirty-two million, one hundred twenty thousand, four hundred twenty-four".