111010121147 has 2 divisors, whose sum is σ = 111010121148. Its totient is φ = 111010121146.

The previous prime is 111010121129. The next prime is 111010121203. The reversal of 111010121147 is 741121010111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111010121147 is a prime.

It is not a weakly prime, because it can be changed into another prime (111010127147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505060573 + 55505060574.

It is an arithmetic number, because the mean of its divisors is an integer number (55505060574).

Almost surely, 2^111010121147 is an apocalyptic number.

111010121147 is a deficient number, since it is larger than the sum of its proper divisors (1).

111010121147 is an equidigital number, since it uses as much as digits as its factorization.

111010121147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 20.

Adding to 111010121147 its reverse (741121010111), we get a palindrome (852131131258).

The spelling of 111010121147 in words is "one hundred eleven billion, ten million, one hundred twenty-one thousand, one hundred forty-seven".