120512539000 has 64 divisors (see below), whose sum is σ = 322284980160. Its totient is φ = 41318582400.

The previous prime is 120512538941. The next prime is 120512539001. The reversal of 120512539000 is 935215021.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 120512539000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120512539001) 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, 8601039 + ... + 8615038.

It is an arithmetic number, because the mean of its divisors is an integer number (5035702815).

Almost surely, 2^120512539000 is an apocalyptic number.

120512539000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120512539000 is an abundant number, since it is smaller than the sum of its proper divisors (201772441160).

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

120512539000 is a wasteful number, since it uses less digits than its factorization.

120512539000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17216105 (or 17216091 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 28.

The spelling of 120512539000 in words is "one hundred twenty billion, five hundred twelve million, five hundred thirty-nine thousand".