203111320332 has 24 divisors (see below), whose sum is σ = 475052141872. Its totient is φ = 67542955200.

The previous prime is 203111320331. The next prime is 203111320337. The reversal of 203111320332 is 233023111302.

It is a junction number, because it is equal to n+sod(n) for n = 203111320299 and 203111320308.

It is not an unprimeable number, because it can be changed into a prime (203111320331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20097019 + ... + 20107122.

Almost surely, 2^203111320332 is an apocalyptic number.

It is an amenable number.

203111320332 is an abundant number, since it is smaller than the sum of its proper divisors (271940821540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203111320332 is a wasteful number, since it uses less digits than its factorization.

203111320332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40204569 (or 40204567 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 203111320332 its reverse (233023111302), we get a palindrome (436134431634).

The spelling of 203111320332 in words is "two hundred three billion, one hundred eleven million, three hundred twenty thousand, three hundred thirty-two".