203130340 has 24 divisors (see below), whose sum is σ = 487513152. Its totient is φ = 69644640.

The previous prime is 203130337. The next prime is 203130341. The reversal of 203130340 is 43031302.

203130340 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (203130341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 725326 + ... + 725605.

It is an arithmetic number, because the mean of its divisors is an integer number (20313048).

Almost surely, 2^203130340 is an apocalyptic number.

203130340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203130340 is an abundant number, since it is smaller than the sum of its proper divisors (284382812).

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

203130340 is a wasteful number, since it uses less digits than its factorization.

203130340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450947 (or 1450945 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 203130340 is about 14252.3801521009. The cubic root of 203130340 is about 587.8388231167.

Adding to 203130340 its reverse (43031302), we get a palindrome (246161642).

The spelling of 203130340 in words is "two hundred three million, one hundred thirty thousand, three hundred forty".