4491331111 has 2 divisors, whose sum is σ = 4491331112. Its totient is φ = 4491331110.

The previous prime is 4491331081. The next prime is 4491331217. The reversal of 4491331111 is 1111331944.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4491331111 - 2⁷ = 4491330983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4491331111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4491337111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2245665555 + 2245665556.

It is an arithmetic number, because the mean of its divisors is an integer number (2245665556).

Almost surely, 2^4491331111 is an apocalyptic number.

4491331111 is a deficient number, since it is larger than the sum of its proper divisors (1).

4491331111 is an equidigital number, since it uses as much as digits as its factorization.

4491331111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 28.

The square root of 4491331111 is about 67017.3940928771. The cubic root of 4491331111 is about 1649.9027932939.

The spelling of 4491331111 in words is "four billion, four hundred ninety-one million, three hundred thirty-one thousand, one hundred eleven".