11101111100971 has 2 divisors, whose sum is σ = 11101111100972. Its totient is φ = 11101111100970.

The previous prime is 11101111100927. The next prime is 11101111101037. The reversal of 11101111100971 is 17900111110111.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (17900111110111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11101111100971 - 2²¹ = 11101109003819 is a prime.

It is a super-2 number, since 2×11101111100971² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11101111100921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550555550485 + 5550555550486.

It is an arithmetic number, because the mean of its divisors is an integer number (5550555550486).

Almost surely, 2^{11101111100971} is an apocalyptic number.

11101111100971 is a deficient number, since it is larger than the sum of its proper divisors (1).

11101111100971 is an equidigital number, since it uses as much as digits as its factorization.

11101111100971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63, while the sum is 25.

The spelling of 11101111100971 in words is "eleven trillion, one hundred one billion, one hundred eleven million, one hundred thousand, nine hundred seventy-one".