200020112309 has 2 divisors, whose sum is σ = 200020112310. Its totient is φ = 200020112308.

The previous prime is 200020112177. The next prime is 200020112311. The reversal of 200020112309 is 903211020002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199766984209 + 253128100 = 446953^2 + 15910^2 .

It is a cyclic number.

It is not a de Polignac number, because 200020112309 - 2¹² = 200020108213 is a prime.

It is a super-2 number, since 2×200020112309² (a number of 23 digits) contains 22 as substring.

Together with 200020112311, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200020112389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100010056154 + 100010056155.

It is an arithmetic number, because the mean of its divisors is an integer number (100010056155).

Almost surely, 2^200020112309 is an apocalyptic number.

It is an amenable number.

200020112309 is a deficient number, since it is larger than the sum of its proper divisors (1).

200020112309 is an equidigital number, since it uses as much as digits as its factorization.

200020112309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The spelling of 200020112309 in words is "two hundred billion, twenty million, one hundred twelve thousand, three hundred nine".