203123440232 has 8 divisors (see below), whose sum is σ = 380856450450. Its totient is φ = 101561720112.

The previous prime is 203123440217. The next prime is 203123440253. The reversal of 203123440232 is 232044321302.

It can be written as a sum of positive squares in only one way, i.e., 183967219396 + 19156220836 = 428914^2 + 138406^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12695215007 + ... + 12695215022.

Almost surely, 2^203123440232 is an apocalyptic number.

It is an amenable number.

203123440232 is a deficient number, since it is larger than the sum of its proper divisors (177733010218).

203123440232 is a wasteful number, since it uses less digits than its factorization.

203123440232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25390430035 (or 25390430031 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 203123440232 its reverse (232044321302), we get a palindrome (435167761534).

The spelling of 203123440232 in words is "two hundred three billion, one hundred twenty-three million, four hundred forty thousand, two hundred thirty-two".