12149880531 has 4 divisors (see below), whose sum is σ = 16199840712. Its totient is φ = 8099920352.

The previous prime is 12149880521. The next prime is 12149880539. The reversal of 12149880531 is 13508894121.

12149880531 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, and also an emirpimes, since its reverse is a distinct semiprime: 13508894121 = 3 ⋅4502964707.

It is a cyclic number.

It is not a de Polignac number, because 12149880531 - 2¹⁹ = 12149356243 is a prime.

It is a super-2 number, since 2×12149880531² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12149880539) 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, 2024980086 + ... + 2024980091.

It is an arithmetic number, because the mean of its divisors is an integer number (4049960178).

Almost surely, 2^12149880531 is an apocalyptic number.

12149880531 is a deficient number, since it is larger than the sum of its proper divisors (4049960181).

12149880531 is an equidigital number, since it uses as much as digits as its factorization.

12149880531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4049960180.

The product of its (nonzero) digits is 69120, while the sum is 42.

The spelling of 12149880531 in words is "twelve billion, one hundred forty-nine million, eight hundred eighty thousand, five hundred thirty-one".