203104031 has 24 divisors (see below), whose sum is σ = 226530576. Its totient is φ = 181958400.

The previous prime is 203103983. The next prime is 203104043. The reversal of 203104031 is 130401302.

It is not a de Polignac number, because 203104031 - 2¹⁰ = 203103007 is a prime.

It is a super-2 number, since 2×203104031² = 82502494816897922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203103997 and 203104015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203104331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1245956 + ... + 1246118.

It is an arithmetic number, because the mean of its divisors is an integer number (9438774).

Almost surely, 2^203104031 is an apocalyptic number.

203104031 is a deficient number, since it is larger than the sum of its proper divisors (23426545).

203104031 is a wasteful number, since it uses less digits than its factorization.

203104031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363 (or 350 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 203104031 is about 14251.4571535685. The cubic root of 203104031 is about 587.8134434856.

Adding to 203104031 its reverse (130401302), we get a palindrome (333505333).

The spelling of 203104031 in words is "two hundred three million, one hundred four thousand, thirty-one".