104306391187 has 2 divisors, whose sum is σ = 104306391188. Its totient is φ = 104306391186.

The previous prime is 104306391181. The next prime is 104306391227. The reversal of 104306391187 is 781193603401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 104306391187 - 2³⁵ = 69946652819 is a prime.

It is not a weakly prime, because it can be changed into another prime (104306391181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52153195593 + 52153195594.

It is an arithmetic number, because the mean of its divisors is an integer number (52153195594).

Almost surely, 2^104306391187 is an apocalyptic number.

104306391187 is a deficient number, since it is larger than the sum of its proper divisors (1).

104306391187 is an equidigital number, since it uses as much as digits as its factorization.

104306391187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 43.

Adding to 104306391187 its reverse (781193603401), we get a palindrome (885499994588).

The spelling of 104306391187 in words is "one hundred four billion, three hundred six million, three hundred ninety-one thousand, one hundred eighty-seven".