105000204391 has 2 divisors, whose sum is σ = 105000204392. Its totient is φ = 105000204390.

The previous prime is 105000204367. The next prime is 105000204467. The reversal of 105000204391 is 193402000501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105000204391 - 2⁵ = 105000204359 is a prime.

It is a super-2 number, since 2×105000204391² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105000204341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52500102195 + 52500102196.

It is an arithmetic number, because the mean of its divisors is an integer number (52500102196).

Almost surely, 2^105000204391 is an apocalyptic number.

105000204391 is a deficient number, since it is larger than the sum of its proper divisors (1).

105000204391 is an equidigital number, since it uses as much as digits as its factorization.

105000204391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 105000204391 its reverse (193402000501), we get a palindrome (298402204892).

The spelling of 105000204391 in words is "one hundred five billion, two hundred four thousand, three hundred ninety-one".