203312100000000 has 648 divisors, whose sum is σ = 678727418116384. Its totient is φ = 54028800000000.

The previous prime is 203312099999873. The next prime is 203312100000047. The reversal of 203312100000000 is 1213302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 101099998995 + ... + 101100001005.

Almost surely, 2^{203312100000000} is an apocalyptic number.

203312100000000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203312100000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (339363709058192).

203312100000000 is an abundant number, since it is smaller than the sum of its proper divisors (475415318116384).

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

203312100000000 is an frugal number, since it uses more digits than its factorization.

203312100000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2407 (or 2358 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 203312100000000 its reverse (1213302), we get a palindrome (203312101213302).

The spelling of 203312100000000 in words is "two hundred three trillion, three hundred twelve billion, one hundred million", and thus it is an aban number.