12520136348 has 12 divisors (see below), whose sum is σ = 21914970000. Its totient is φ = 6258716352.

The previous prime is 12520136269. The next prime is 12520136383. The reversal of 12520136348 is 84363102521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316973 + ... + 354276.

It is an arithmetic number, because the mean of its divisors is an integer number (1826247500).

Almost surely, 2^12520136348 is an apocalyptic number.

It is an amenable number.

12520136348 is a deficient number, since it is larger than the sum of its proper divisors (9394833652).

12520136348 is a wasteful number, since it uses less digits than its factorization.

12520136348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675916 (or 675914 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

Adding to 12520136348 its reverse (84363102521), we get a palindrome (96883238869).

The spelling of 12520136348 in words is "twelve billion, five hundred twenty million, one hundred thirty-six thousand, three hundred forty-eight".