203113331312 has 20 divisors (see below), whose sum is σ = 393572045640. Its totient is φ = 101546351808.

The previous prime is 203113331303. The next prime is 203113331387. The reversal of 203113331312 is 213133311302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480887 + ... + 798422.

It is an arithmetic number, because the mean of its divisors is an integer number (19678602282).

Almost surely, 2^203113331312 is an apocalyptic number.

It is an amenable number.

203113331312 is a deficient number, since it is larger than the sum of its proper divisors (190458714328).

203113331312 is a wasteful number, since it uses less digits than its factorization.

203113331312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289240 (or 1289234 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 203113331312 its reverse (213133311302), we get a palindrome (416246642614).

The spelling of 203113331312 in words is "two hundred three billion, one hundred thirteen million, three hundred thirty-one thousand, three hundred twelve".