200031100 has 36 divisors (see below), whose sum is σ = 435612744. Its totient is φ = 79727680.

The previous prime is 200031089. The next prime is 200031109. The reversal of 200031100 is 1130002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200031109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25887 + ... + 32713.

It is an arithmetic number, because the mean of its divisors is an integer number (12100354).

Almost surely, 2^200031100 is an apocalyptic number.

200031100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200031100 is an abundant number, since it is smaller than the sum of its proper divisors (235581644).

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

200031100 is a wasteful number, since it uses less digits than its factorization.

200031100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7134 (or 7127 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 200031100 is about 14143.2351320340. The cubic root of 200031100 is about 584.8338583887.

Adding to 200031100 its reverse (1130002), we get a palindrome (201161102).

The spelling of 200031100 in words is "two hundred million, thirty-one thousand, one hundred".