200105250534191 has 2 divisors, whose sum is σ = 200105250534192. Its totient is φ = 200105250534190.

The previous prime is 200105250534109. The next prime is 200105250534221. The reversal of 200105250534191 is 191435052501002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200105250534191 is a prime.

It is a super-2 number, since 2×200105250534191² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200105250530191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100052625267095 + 100052625267096.

It is an arithmetic number, because the mean of its divisors is an integer number (100052625267096).

Almost surely, 2^{200105250534191} is an apocalyptic number.

200105250534191 is a deficient number, since it is larger than the sum of its proper divisors (1).

200105250534191 is an equidigital number, since it uses as much as digits as its factorization.

200105250534191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54000, while the sum is 38.

The spelling of 200105250534191 in words is "two hundred trillion, one hundred five billion, two hundred fifty million, five hundred thirty-four thousand, one hundred ninety-one".