203423310440312 has 16 divisors (see below), whose sum is σ = 383848125594360. Its totient is φ = 101063810281824.

The previous prime is 203423310440303. The next prime is 203423310440423. The reversal of 203423310440312 is 213044013324302.

It is a super-3 number, since 3×203423310440312³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80980615958 + ... + 80980618469.

Almost surely, 2^{203423310440312} is an apocalyptic number.

It is an amenable number.

203423310440312 is a deficient number, since it is larger than the sum of its proper divisors (180424815154048).

203423310440312 is a wasteful number, since it uses less digits than its factorization.

203423310440312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161961234590 (or 161961234586 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 203423310440312 its reverse (213044013324302), we get a palindrome (416467323764614).

The spelling of 203423310440312 in words is "two hundred three trillion, four hundred twenty-three billion, three hundred ten million, four hundred forty thousand, three hundred twelve".