12412135531 has 4 divisors (see below), whose sum is σ = 12535028064. Its totient is φ = 12289243000.

The previous prime is 12412135511. The next prime is 12412135543. The reversal of 12412135531 is 13553121421.

12412135531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12412135531 - 2¹⁵ = 12412102763 is a prime.

It is a super-2 number, since 2×12412135531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12412135531.

It is not an unprimeable number, because it can be changed into a prime (12412135501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61446115 + ... + 61446316.

It is an arithmetic number, because the mean of its divisors is an integer number (3133757016).

Almost surely, 2^12412135531 is an apocalyptic number.

12412135531 is a deficient number, since it is larger than the sum of its proper divisors (122892533).

12412135531 is a wasteful number, since it uses less digits than its factorization.

12412135531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122892532.

The product of its digits is 3600, while the sum is 28.

Adding to 12412135531 its reverse (13553121421), we get a palindrome (25965256952).

The spelling of 12412135531 in words is "twelve billion, four hundred twelve million, one hundred thirty-five thousand, five hundred thirty-one".