203130310130 has 16 divisors (see below), whose sum is σ = 398874063744. Its totient is φ = 73865567280.

The previous prime is 203130310127. The next prime is 203130310139. The reversal of 203130310130 is 31013031302.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 203130310099 and 203130310108.

It is not an unprimeable number, because it can be changed into a prime (203130310139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 923319482 + ... + 923319701.

It is an arithmetic number, because the mean of its divisors is an integer number (24929628984).

Almost surely, 2^203130310130 is an apocalyptic number.

203130310130 is a deficient number, since it is larger than the sum of its proper divisors (195743753614).

203130310130 is a wasteful number, since it uses less digits than its factorization.

203130310130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1846639201.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 203130310130 its reverse (31013031302), we get a palindrome (234143341432).

The spelling of 203130310130 in words is "two hundred three billion, one hundred thirty million, three hundred ten thousand, one hundred thirty".