203113210321312 has 48 divisors (see below), whose sum is σ = 400330199465280. Its totient is φ = 101442054279168.

The previous prime is 203113210321253. The next prime is 203113210321391. The reversal of 203113210321312 is 213123012311302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1699788864 + ... + 1699908352.

It is an arithmetic number, because the mean of its divisors is an integer number (8340212488860).

Almost surely, 2^{203113210321312} is an apocalyptic number.

It is an amenable number.

203113210321312 is a deficient number, since it is larger than the sum of its proper divisors (197216989143968).

203113210321312 is a wasteful number, since it uses less digits than its factorization.

203113210321312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178973 (or 178965 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 203113210321312 its reverse (213123012311302), we get a palindrome (416236222632614).

The spelling of 203113210321312 in words is "two hundred three trillion, one hundred thirteen billion, two hundred ten million, three hundred twenty-one thousand, three hundred twelve".