128313136602 has 24 divisors (see below), whose sum is σ = 317727767136. Its totient is φ = 36660896136.

The previous prime is 128313136559. The next prime is 128313136603. The reversal of 128313136602 is 206631313821.

128313136602 is a `hidden beast` number, since 1 + 2 + 8 + 3 + 13 + 1 + 36 + 602 = 666.

It is a super-2 number, since 2×128313136602² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (128313136603) 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 11 ways as a sum of consecutive naturals, for example, 509178988 + ... + 509179239.

It is an arithmetic number, because the mean of its divisors is an integer number (13238656964).

Almost surely, 2^128313136602 is an apocalyptic number.

128313136602 is an abundant number, since it is smaller than the sum of its proper divisors (189414630534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128313136602 is a wasteful number, since it uses less digits than its factorization.

128313136602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018358242 (or 1018358239 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 128313136602 in words is "one hundred twenty-eight billion, three hundred thirteen million, one hundred thirty-six thousand, six hundred two".