203231311232 has 16 divisors (see below), whose sum is σ = 404874878100. Its totient is φ = 101615655552.

The previous prime is 203231311223. The next prime is 203231311237. The reversal of 203231311232 is 232113132302.

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 203231311198 and 203231311207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203231311237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 793872182 + ... + 793872437.

Almost surely, 2^203231311232 is an apocalyptic number.

It is an amenable number.

203231311232 is a deficient number, since it is larger than the sum of its proper divisors (201643566868).

203231311232 is an equidigital number, since it uses as much as digits as its factorization.

203231311232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1587744633 (or 1587744621 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 203231311232 its reverse (232113132302), we get a palindrome (435344443534).

The spelling of 203231311232 in words is "two hundred three billion, two hundred thirty-one million, three hundred eleven thousand, two hundred thirty-two".