8113203491 has 2 divisors, whose sum is σ = 8113203492. Its totient is φ = 8113203490.

The previous prime is 8113203487. The next prime is 8113203499. The reversal of 8113203491 is 1943023118.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8113203491 - 2² = 8113203487 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (8113203499) 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, 4056601745 + 4056601746.

It is an arithmetic number, because the mean of its divisors is an integer number (4056601746).

Almost surely, 2^8113203491 is an apocalyptic number.

8113203491 is a deficient number, since it is larger than the sum of its proper divisors (1).

8113203491 is an equidigital number, since it uses as much as digits as its factorization.

8113203491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 8113203491 is about 90073.3228597680. The cubic root of 8113203491 is about 2009.3894741545.

The spelling of 8113203491 in words is "eight billion, one hundred thirteen million, two hundred three thousand, four hundred ninety-one".