4991110001 has 2 divisors, whose sum is σ = 4991110002. Its totient is φ = 4991110000.

The previous prime is 4991109997. The next prime is 4991110039. The reversal of 4991110001 is 1000111994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4990009600 + 1100401 = 70640^2 + 1049^2 .

It is a cyclic number.

It is not a de Polignac number, because 4991110001 - 2² = 4991109997 is a prime.

It is a super-3 number, since 3×4991110001³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (4991160001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2495555000 + 2495555001.

It is an arithmetic number, because the mean of its divisors is an integer number (2495555001).

Almost surely, 2^4991110001 is an apocalyptic number.

It is an amenable number.

4991110001 is a deficient number, since it is larger than the sum of its proper divisors (1).

4991110001 is an equidigital number, since it uses as much as digits as its factorization.

4991110001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 26.

The square root of 4991110001 is about 70647.7883659496. The cubic root of 4991110001 is about 1708.9618998169.

Adding to 4991110001 its reverse (1000111994), we get a palindrome (5991221995).

The spelling of 4991110001 in words is "four billion, nine hundred ninety-one million, one hundred ten thousand, one".