203023133300 has 72 divisors (see below), whose sum is σ = 490809862200. Its totient is φ = 72377464320.

The previous prime is 203023133281. The next prime is 203023133309. The reversal of 203023133300 is 3331320302.

It can be written as a sum of positive squares in 12 ways, for example, as 141397056784 + 61626076516 = 376028^2 + 248246^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203023133309) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2654915 + ... + 2730314.

Almost surely, 2^203023133300 is an apocalyptic number.

203023133300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203023133300 is an abundant number, since it is smaller than the sum of its proper divisors (287786728900).

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

203023133300 is a wasteful number, since it uses less digits than its factorization.

203023133300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5385285 (or 5385278 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 203023133300 its reverse (3331320302), we get a palindrome (206354453602).

The spelling of 203023133300 in words is "two hundred three billion, twenty-three million, one hundred thirty-three thousand, three hundred".