203053120 has 28 divisors (see below), whose sum is σ = 483521004. Its totient is φ = 81221120.

The previous prime is 203053087. The next prime is 203053121. The reversal of 203053120 is 21350302.

It can be written as a sum of positive squares in 2 ways, for example, as 100962304 + 102090816 = 10048^2 + 10104^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 203053094 and 203053103.

It is not an unprimeable number, because it can be changed into a prime (203053121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316951 + ... + 317590.

Almost surely, 2^203053120 is an apocalyptic number.

203053120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203053120 is an abundant number, since it is smaller than the sum of its proper divisors (280467884).

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

203053120 is an equidigital number, since it uses as much as digits as its factorization.

203053120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634558 (or 634548 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 203053120 is about 14249.6708733921. The cubic root of 203053120 is about 587.7643246983.

The spelling of 203053120 in words is "two hundred three million, fifty-three thousand, one hundred twenty".