12520130456 has 32 divisors (see below), whose sum is σ = 24539289600. Its totient is φ = 5981433120.

The previous prime is 12520130453. The next prime is 12520130461. The reversal of 12520130456 is 65403102521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12520130453) 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, 299930 + ... + 339113.

It is an arithmetic number, because the mean of its divisors is an integer number (766852800).

Almost surely, 2^12520130456 is an apocalyptic number.

It is an amenable number.

12520130456 is a deficient number, since it is larger than the sum of its proper divisors (12019159144).

12520130456 is a wasteful number, since it uses less digits than its factorization.

12520130456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639159 (or 639155 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 12520130456 its reverse (65403102521), we get a palindrome (77923232977).

The spelling of 12520130456 in words is "twelve billion, five hundred twenty million, one hundred thirty thousand, four hundred fifty-six".