203132021328 has 120 divisors (see below), whose sum is σ = 582860060640. Its totient is φ = 66005049600.

The previous prime is 203132021249. The next prime is 203132021329. The reversal of 203132021328 is 823120231302.

It is a happy number.

203132021328 is a `hidden beast` number, since 2 + 0 + 313 + 2 + 0 + 21 + 328 = 666.

203132021328 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203132021329) 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 23 ways as a sum of consecutive naturals, for example, 3119503 + ... + 3183953.

It is an arithmetic number, because the mean of its divisors is an integer number (4857167172).

Almost surely, 2^203132021328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203132021328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291430030320).

203132021328 is an abundant number, since it is smaller than the sum of its proper divisors (379728039312).

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

203132021328 is a wasteful number, since it uses less digits than its factorization.

203132021328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65017 (or 65008 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The spelling of 203132021328 in words is "two hundred three billion, one hundred thirty-two million, twenty-one thousand, three hundred twenty-eight".