203130118 has 4 divisors (see below), whose sum is σ = 304695180. Its totient is φ = 101565058.

The previous prime is 203130107. The next prime is 203130139. The reversal of 203130118 is 811031302.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 203130095 and 203130104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50782528 + ... + 50782531.

It is an arithmetic number, because the mean of its divisors is an integer number (76173795).

Almost surely, 2^203130118 is an apocalyptic number.

203130118 is a deficient number, since it is larger than the sum of its proper divisors (101565062).

203130118 is a wasteful number, since it uses less digits than its factorization.

203130118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101565061.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 203130118 is about 14252.3723639259. The cubic root of 203130118 is about 587.8386089681.

It can be divided in two parts, 203 and 130118, that added together give a 4-th power (130321 = 19⁴).

The spelling of 203130118 in words is "two hundred three million, one hundred thirty thousand, one hundred eighteen".