9111099379 has 2 divisors, whose sum is σ = 9111099380. Its totient is φ = 9111099378.

The previous prime is 9111099377. The next prime is 9111099397. The reversal of 9111099379 is 9739901119.

Together with next prime (9111099397) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9111099379 - 2¹ = 9111099377 is a prime.

Together with 9111099377, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (9111099377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4555549689 + 4555549690.

It is an arithmetic number, because the mean of its divisors is an integer number (4555549690).

Almost surely, 2^9111099379 is an apocalyptic number.

9111099379 is a deficient number, since it is larger than the sum of its proper divisors (1).

9111099379 is an equidigital number, since it uses as much as digits as its factorization.

9111099379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 137781, while the sum is 49.

The square root of 9111099379 is about 95452.0789663588. The cubic root of 9111099379 is about 2088.6079555389.

The spelling of 9111099379 in words is "nine billion, one hundred eleven million, ninety-nine thousand, three hundred seventy-nine".