11111111101151 has 2 divisors, whose sum is σ = 11111111101152. Its totient is φ = 11111111101150.

The previous prime is 11111111101133. The next prime is 11111111101183. The reversal of 11111111101151 is 15110111111111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11111111101151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11111111121151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555555550575 + 5555555550576.

It is an arithmetic number, because the mean of its divisors is an integer number (5555555550576).

Almost surely, 2^{11111111101151} is an apocalyptic number.

11111111101151 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111111101151 is an equidigital number, since it uses as much as digits as its factorization.

11111111101151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5, while the sum is 17.

Adding to 11111111101151 its reverse (15110111111111), we get a palindrome (26221222212262).

The spelling of 11111111101151 in words is "eleven trillion, one hundred eleven billion, one hundred eleven million, one hundred one thousand, one hundred fifty-one".