203312123000 has 96 divisors (see below), whose sum is σ = 553424030640. Its totient is φ = 69706996800.

The previous prime is 203312122967. The next prime is 203312123071. The reversal of 203312123000 is 321213302.

It is a self number, because there is not a number n which added to its sum of digits gives 203312123000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2025614 + ... + 2123613.

Almost surely, 2^203312123000 is an apocalyptic number.

203312123000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203312123000 is an abundant number, since it is smaller than the sum of its proper divisors (350111907640).

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

203312123000 is a wasteful number, since it uses less digits than its factorization.

203312123000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4149262 (or 4149241 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 203312123000 its reverse (321213302), we get a palindrome (203633336302).

The spelling of 203312123000 in words is "two hundred three billion, three hundred twelve million, one hundred twenty-three thousand".