203200111000 has 64 divisors (see below), whose sum is σ = 475889618880. Its totient is φ = 81211436800.

The previous prime is 203200110973. The next prime is 203200111013. The reversal of 203200111000 is 111002302.

It is a super-2 number, since 2×203200111000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1107837 + ... + 1278163.

It is an arithmetic number, because the mean of its divisors is an integer number (7435775295).

Almost surely, 2^203200111000 is an apocalyptic number.

203200111000 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 203200111000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237944809440).

203200111000 is an abundant number, since it is smaller than the sum of its proper divisors (272689507880).

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

203200111000 is a wasteful number, since it uses less digits than its factorization.

203200111000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171541 (or 171527 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 203200111000 its reverse (111002302), we get a palindrome (203311113302).

The spelling of 203200111000 in words is "two hundred three billion, two hundred million, one hundred eleven thousand".