2231191663 has 2 divisors, whose sum is σ = 2231191664. Its totient is φ = 2231191662.

The previous prime is 2231191657. The next prime is 2231191733. The reversal of 2231191663 is 3661911322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2231191663 - 2²⁹ = 1694320751 is a prime.

It is a super-3 number, since 3×2231191663³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2231191063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115595831 + 1115595832.

It is an arithmetic number, because the mean of its divisors is an integer number (1115595832).

Almost surely, 2^2231191663 is an apocalyptic number.

2231191663 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231191663 is an equidigital number, since it uses as much as digits as its factorization.

2231191663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 34.

The square root of 2231191663 is about 47235.4915609015. The cubic root of 2231191663 is about 1306.7092321865.

The spelling of 2231191663 in words is "two billion, two hundred thirty-one million, one hundred ninety-one thousand, six hundred sixty-three".