203031023 has 12 divisors (see below), whose sum is σ = 224536608. Its totient is φ = 183418560.

The previous prime is 203031011. The next prime is 203031067. The reversal of 203031023 is 320130302.

It is not a de Polignac number, because 203031023 - 2²² = 198836719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203030989 and 203031007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203031223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4838 + ... + 20723.

It is an arithmetic number, because the mean of its divisors is an integer number (18711384).

Almost surely, 2^203031023 is an apocalyptic number.

203031023 is a deficient number, since it is larger than the sum of its proper divisors (21505585).

203031023 is a wasteful number, since it uses less digits than its factorization.

203031023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25634 (or 25621 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 203031023 is about 14248.8955010555. The cubic root of 203031023 is about 587.7430030208.

Adding to 203031023 its reverse (320130302), we get a palindrome (523161325).

The spelling of 203031023 in words is "two hundred three million, thirty-one thousand, twenty-three".