11515011106811 has 2 divisors, whose sum is σ = 11515011106812. Its totient is φ = 11515011106810.

The previous prime is 11515011106801. The next prime is 11515011106901. The reversal of 11515011106811 is 11860111051511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11515011106811 - 2⁶ = 11515011106747 is a prime.

It is not a weakly prime, because it can be changed into another prime (11515011106801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5757505553405 + 5757505553406.

It is an arithmetic number, because the mean of its divisors is an integer number (5757505553406).

Almost surely, 2^{11515011106811} is an apocalyptic number.

11515011106811 is a deficient number, since it is larger than the sum of its proper divisors (1).

11515011106811 is an equidigital number, since it uses as much as digits as its factorization.

11515011106811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 32.

The spelling of 11515011106811 in words is "eleven trillion, five hundred fifteen billion, eleven million, one hundred six thousand, eight hundred eleven".