103990256191 has 2 divisors, whose sum is σ = 103990256192. Its totient is φ = 103990256190.

The previous prime is 103990256177. The next prime is 103990256243. The reversal of 103990256191 is 191652099301.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 103990256191 - 2⁹ = 103990255679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103990250191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51995128095 + 51995128096.

It is an arithmetic number, because the mean of its divisors is an integer number (51995128096).

Almost surely, 2^103990256191 is an apocalyptic number.

103990256191 is a deficient number, since it is larger than the sum of its proper divisors (1).

103990256191 is an equidigital number, since it uses as much as digits as its factorization.

103990256191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 131220, while the sum is 46.

The spelling of 103990256191 in words is "one hundred three billion, nine hundred ninety million, two hundred fifty-six thousand, one hundred ninety-one".