103103191 has 2 divisors, whose sum is σ = 103103192. Its totient is φ = 103103190.

The previous prime is 103103183. The next prime is 103103197. The reversal of 103103191 is 191301301.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 103103191 - 2³ = 103103183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103103197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51551595 + 51551596.

It is an arithmetic number, because the mean of its divisors is an integer number (51551596).

Almost surely, 2^103103191 is an apocalyptic number.

103103191 is a deficient number, since it is larger than the sum of its proper divisors (1).

103103191 is an equidigital number, since it uses as much as digits as its factorization.

103103191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81, while the sum is 19.

The square root of 103103191 is about 10153.9741480861. The cubic root of 103103191 is about 468.9113038703.

Adding to 103103191 its reverse (191301301), we get a palindrome (294404492).

The spelling of 103103191 in words is "one hundred three million, one hundred three thousand, one hundred ninety-one".