11111011100977 has 2 divisors, whose sum is σ = 11111011100978. Its totient is φ = 11111011100976.

The previous prime is 11111011100921. The next prime is 11111011101007. The reversal of 11111011100977 is 77900111011111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10667859936561 + 443151164416 = 3266169^2 + 665696^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11111011100977 is a prime.

It is not a weakly prime, because it can be changed into another prime (11111011700977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555505550488 + 5555505550489.

It is an arithmetic number, because the mean of its divisors is an integer number (5555505550489).

Almost surely, 2^{11111011100977} is an apocalyptic number.

It is an amenable number.

11111011100977 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111011100977 is an equidigital number, since it uses as much as digits as its factorization.

11111011100977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 441, while the sum is 31.

The spelling of 11111011100977 in words is "eleven trillion, one hundred eleven billion, eleven million, one hundred thousand, nine hundred seventy-seven".