203130123 has 32 divisors (see below), whose sum is σ = 321615360. Its totient is φ = 111578880.

The previous prime is 203130107. The next prime is 203130139. The reversal of 203130123 is 321031302.

It is an interprime number because it is at equal distance from previous prime (203130107) and next prime (203130139).

It is not a de Polignac number, because 203130123 - 2⁴ = 203130107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (203130143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170536 + ... + 171722.

It is an arithmetic number, because the mean of its divisors is an integer number (10050480).

Almost surely, 2^203130123 is an apocalyptic number.

203130123 is a deficient number, since it is larger than the sum of its proper divisors (118485237).

203130123 is a wasteful number, since it uses less digits than its factorization.

203130123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 203130123 is about 14252.3725393353. The cubic root of 203130123 is about 587.8386137913.

Adding to 203130123 its reverse (321031302), we get a palindrome (524161425).

The spelling of 203130123 in words is "two hundred three million, one hundred thirty thousand, one hundred twenty-three".