12461550523 has 4 divisors (see below), whose sum is σ = 12578013720. Its totient is φ = 12345087328.

The previous prime is 12461550449. The next prime is 12461550527. The reversal of 12461550523 is 32505516421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32505516421 = 7 ⋅4643645203.

It is a cyclic number.

It is not a de Polignac number, because 12461550523 - 2⁹ = 12461550011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12461550527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58231438 + ... + 58231651.

It is an arithmetic number, because the mean of its divisors is an integer number (3144503430).

Almost surely, 2^12461550523 is an apocalyptic number.

12461550523 is a deficient number, since it is larger than the sum of its proper divisors (116463197).

12461550523 is a wasteful number, since it uses less digits than its factorization.

12461550523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116463196.

The product of its (nonzero) digits is 36000, while the sum is 34.

The spelling of 12461550523 in words is "twelve billion, four hundred sixty-one million, five hundred fifty thousand, five hundred twenty-three".