203489653120 has 128 divisors (see below), whose sum is σ = 524316875040. Its totient is φ = 75073142784.

The previous prime is 203489653099. The next prime is 203489653153. The reversal of 203489653120 is 21356984302.

203489653120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10864884 + ... + 10883596.

Almost surely, 2^203489653120 is an apocalyptic number.

203489653120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203489653120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262158437520).

203489653120 is an abundant number, since it is smaller than the sum of its proper divisors (320827221920).

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

203489653120 is a wasteful number, since it uses less digits than its factorization.

203489653120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20052 (or 20040 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 203489653120 in words is "two hundred three billion, four hundred eighty-nine million, six hundred fifty-three thousand, one hundred twenty".