202103231312 has 10 divisors (see below), whose sum is σ = 391575010698. Its totient is φ = 101051615648.

The previous prime is 202103231279. The next prime is 202103231327. The reversal of 202103231312 is 213132301202.

It can be written as a sum of positive squares in only one way, i.e., 108146268736 + 93956962576 = 328856^2 + 306524^2 .

It is a super-3 number, since 3×202103231312³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 6315725963 + ... + 6315725994.

Almost surely, 2^202103231312 is an apocalyptic number.

It is an amenable number.

202103231312 is a deficient number, since it is larger than the sum of its proper divisors (189471779386).

202103231312 is a wasteful number, since it uses less digits than its factorization.

202103231312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12631451965 (or 12631451959 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 202103231312 its reverse (213132301202), we get a palindrome (415235532514).

The spelling of 202103231312 in words is "two hundred two billion, one hundred three million, two hundred thirty-one thousand, three hundred twelve".