12534130331 has 4 divisors (see below), whose sum is σ = 12534399192. Its totient is φ = 12533861472.

The previous prime is 12534130327. The next prime is 12534130361. The reversal of 12534130331 is 13303143521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13303143521 = 2777 ⋅4790473.

It is a cyclic number.

It is not a de Polignac number, because 12534130331 - 2² = 12534130327 is a prime.

It is a super-2 number, since 2×12534130331² (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 12534130331.

It is not an unprimeable number, because it can be changed into a prime (12534130321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44405 + ... + 164438.

It is an arithmetic number, because the mean of its divisors is an integer number (3133599798).

Almost surely, 2^12534130331 is an apocalyptic number.

12534130331 is a deficient number, since it is larger than the sum of its proper divisors (268861).

12534130331 is an equidigital number, since it uses as much as digits as its factorization.

12534130331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268860.

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 12534130331 its reverse (13303143521), we get a palindrome (25837273852).

The spelling of 12534130331 in words is "twelve billion, five hundred thirty-four million, one hundred thirty thousand, three hundred thirty-one".