203130004 has 24 divisors (see below), whose sum is σ = 443193408. Its totient is φ = 79141440.

The previous prime is 203129999. The next prime is 203130029. The reversal of 203130004 is 400031302.

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 in 7 ways as a sum of consecutive naturals, for example, 329449 + ... + 330064.

It is an arithmetic number, because the mean of its divisors is an integer number (18466392).

Almost surely, 2^203130004 is an apocalyptic number.

It is an amenable number.

203130004 is an abundant number, since it is smaller than the sum of its proper divisors (240063404).

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

203130004 is a wasteful number, since it uses less digits than its factorization.

203130004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659535 (or 659533 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 203130004 is about 14252.3683645912. The cubic root of 203130004 is about 587.8384989998.

Adding to 203130004 its reverse (400031302), we get a palindrome (603161306).

The spelling of 203130004 in words is "two hundred three million, one hundred thirty thousand, four".