200112309 has 16 divisors (see below), whose sum is σ = 297100800. Its totient is φ = 133121088.

The previous prime is 200112301. The next prime is 200112331. The reversal of 200112309 is 903211002.

It is a happy number.

It is not a de Polignac number, because 200112309 - 2³ = 200112301 is a prime.

It is a super-2 number, since 2×200112309² = 80089872426622962, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 200112291 and 200112300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200112301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5197 + ... + 20669.

It is an arithmetic number, because the mean of its divisors is an integer number (18568800).

Almost surely, 2^200112309 is an apocalyptic number.

It is an amenable number.

200112309 is a deficient number, since it is larger than the sum of its proper divisors (96988491).

200112309 is a wasteful number, since it uses less digits than its factorization.

200112309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15961 (or 15955 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 200112309 is about 14146.1057892269. The cubic root of 200112309 is about 584.9129916619.

The spelling of 200112309 in words is "two hundred million, one hundred twelve thousand, three hundred nine".