11101111121147 has 2 divisors, whose sum is σ = 11101111121148. Its totient is φ = 11101111121146.

The previous prime is 11101111121131. The next prime is 11101111121161. The reversal of 11101111121147 is 74112111110111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11101111121147 - 2⁴ = 11101111121131 is a prime.

It is not a weakly prime, because it can be changed into another prime (11101111121047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550555560573 + 5550555560574.

It is an arithmetic number, because the mean of its divisors is an integer number (5550555560574).

Almost surely, 2^{11101111121147} is an apocalyptic number.

11101111121147 is a deficient number, since it is larger than the sum of its proper divisors (1).

11101111121147 is an equidigital number, since it uses as much as digits as its factorization.

11101111121147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 23.

Adding to 11101111121147 its reverse (74112111110111), we get a palindrome (85213222231258).

The spelling of 11101111121147 in words is "eleven trillion, one hundred one billion, one hundred eleven million, one hundred twenty-one thousand, one hundred forty-seven".