12600128313 has 16 divisors (see below), whose sum is σ = 18726507840. Its totient is φ = 8373242592.

The previous prime is 12600128311. The next prime is 12600128353. The reversal of 12600128313 is 31382100621.

It is a happy number.

12600128313 is a `hidden beast` number, since 1 + 2 + 600 + 1 + 28 + 31 + 3 = 666.

It is not a de Polignac number, because 12600128313 - 2¹ = 12600128311 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12600128311) 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 15 ways as a sum of consecutive naturals, for example, 737031 + ... + 753932.

It is an arithmetic number, because the mean of its divisors is an integer number (1170406740).

Almost surely, 2^12600128313 is an apocalyptic number.

It is an amenable number.

12600128313 is a deficient number, since it is larger than the sum of its proper divisors (6126379527).

12600128313 is a wasteful number, since it uses less digits than its factorization.

12600128313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1491285 (or 1491279 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 12600128313 its reverse (31382100621), we get a palindrome (43982228934).

The spelling of 12600128313 in words is "twelve billion, six hundred million, one hundred twenty-eight thousand, three hundred thirteen".