200105431 has 2 divisors, whose sum is σ = 200105432. Its totient is φ = 200105430.

The previous prime is 200105429. The next prime is 200105459. The reversal of 200105431 is 134501002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 200105431 - 2¹ = 200105429 is a prime.

It is a super-3 number, since 3×200105431³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 200105429, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200105491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100052715 + 100052716.

It is an arithmetic number, because the mean of its divisors is an integer number (100052716).

Almost surely, 2^200105431 is an apocalyptic number.

200105431 is a deficient number, since it is larger than the sum of its proper divisors (1).

200105431 is an equidigital number, since it uses as much as digits as its factorization.

200105431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 200105431 is about 14145.8626813638. The cubic root of 200105431 is about 584.9062902956.

Adding to 200105431 its reverse (134501002), we get a palindrome (334606433).

The spelling of 200105431 in words is "two hundred million, one hundred five thousand, four hundred thirty-one".