2103431191 has 2 divisors, whose sum is σ = 2103431192. Its totient is φ = 2103431190.

The previous prime is 2103431153. The next prime is 2103431203. The reversal of 2103431191 is 1911343012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2103431191 - 2¹⁷ = 2103300119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2103431101) 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, 1051715595 + 1051715596.

It is an arithmetic number, because the mean of its divisors is an integer number (1051715596).

Almost surely, 2^2103431191 is an apocalyptic number.

2103431191 is a deficient number, since it is larger than the sum of its proper divisors (1).

2103431191 is an equidigital number, since it uses as much as digits as its factorization.

2103431191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 2103431191 is about 45863.1790328582. The cubic root of 2103431191 is about 1281.2762317818.

It can be divided in two parts, 21034 and 31191, that added together give a palindrome (52225).

The spelling of 2103431191 in words is "two billion, one hundred three million, four hundred thirty-one thousand, one hundred ninety-one".