203023197 has 48 divisors (see below), whose sum is σ = 337978368. Its totient is φ = 116328960.

The previous prime is 203023193. The next prime is 203023211. The reversal of 203023197 is 791320302.

It is not a de Polignac number, because 203023197 - 2² = 203023193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 203023197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203023193) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 204372 + ... + 205362.

It is an arithmetic number, because the mean of its divisors is an integer number (7041216).

Almost surely, 2^203023197 is an apocalyptic number.

It is an amenable number.

203023197 is a deficient number, since it is larger than the sum of its proper divisors (134955171).

203023197 is a wasteful number, since it uses less digits than its factorization.

203023197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130 (or 1127 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 203023197 is about 14248.6208806326. The cubic root of 203023197 is about 587.7354512425.

Adding to 203023197 its reverse (791320302), we get a palindrome (994343499).

The spelling of 203023197 in words is "two hundred three million, twenty-three thousand, one hundred ninety-seven".