128732531300 has 36 divisors (see below), whose sum is σ = 288360877056. Its totient is φ = 49831946400.

The previous prime is 128732531293. The next prime is 128732531329. The reversal of 128732531300 is 3135237821.

It is a super-2 number, since 2×128732531300² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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, 20760212 + ... + 20766411.

Almost surely, 2^128732531300 is an apocalyptic number.

128732531300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128732531300 is an abundant number, since it is smaller than the sum of its proper divisors (159628345756).

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

128732531300 is a wasteful number, since it uses less digits than its factorization.

128732531300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41526668 (or 41526661 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 128732531300 in words is "one hundred twenty-eight billion, seven hundred thirty-two million, five hundred thirty-one thousand, three hundred".