11120100491 has 2 divisors, whose sum is σ = 11120100492. Its totient is φ = 11120100490.

The previous prime is 11120100487. The next prime is 11120100499. The reversal of 11120100491 is 19400102111.

11120100491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11120100491 - 2² = 11120100487 is a prime.

It is not a weakly prime, because it can be changed into another prime (11120100499) 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, 5560050245 + 5560050246.

It is an arithmetic number, because the mean of its divisors is an integer number (5560050246).

Almost surely, 2^11120100491 is an apocalyptic number.

11120100491 is a deficient number, since it is larger than the sum of its proper divisors (1).

11120100491 is an equidigital number, since it uses as much as digits as its factorization.

11120100491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 11120100491 in words is "eleven billion, one hundred twenty million, one hundred thousand, four hundred ninety-one".