203203144312 has 32 divisors (see below), whose sum is σ = 461049153120. Its totient is φ = 81964293120.

The previous prime is 203203144273. The next prime is 203203144321. The reversal of 203203144312 is 213441302302.

It is a congruent number.

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, 106723389 + ... + 106725292.

It is an arithmetic number, because the mean of its divisors is an integer number (14407786035).

Almost surely, 2^203203144312 is an apocalyptic number.

It is an amenable number.

203203144312 is an abundant number, since it is smaller than the sum of its proper divisors (257846008808).

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

203203144312 is a wasteful number, since it uses less digits than its factorization.

203203144312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213448711 (or 213448707 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 203203144312 its reverse (213441302302), we get a palindrome (416644446614).

The spelling of 203203144312 in words is "two hundred three billion, two hundred three million, one hundred forty-four thousand, three hundred twelve".