203311243132 has 12 divisors (see below), whose sum is σ = 359119860120. Its totient is φ = 100705568816.

The previous prime is 203311243061. The next prime is 203311243159. The reversal of 203311243132 is 231342113302.

It is a junction number, because it is equal to n+sod(n) for n = 203311243097 and 203311243106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237512707 + ... + 237513562.

It is an arithmetic number, because the mean of its divisors is an integer number (29926655010).

Almost surely, 2^203311243132 is an apocalyptic number.

It is an amenable number.

203311243132 is a deficient number, since it is larger than the sum of its proper divisors (155808616988).

203311243132 is a wasteful number, since it uses less digits than its factorization.

203311243132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475026380 (or 475026378 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 203311243132 its reverse (231342113302), we get a palindrome (434653356434).

The spelling of 203311243132 in words is "two hundred three billion, three hundred eleven million, two hundred forty-three thousand, one hundred thirty-two".