111100211102051 has 2 divisors, whose sum is σ = 111100211102052. Its totient is φ = 111100211102050.

The previous prime is 111100211102017. The next prime is 111100211102063. The reversal of 111100211102051 is 150201112001111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111100211102051 is a prime.

It is not a weakly prime, because it can be changed into another prime (111100210102051) 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, 55550105551025 + 55550105551026.

It is an arithmetic number, because the mean of its divisors is an integer number (55550105551026).

Almost surely, 2^{111100211102051} is an apocalyptic number.

111100211102051 is a deficient number, since it is larger than the sum of its proper divisors (1).

111100211102051 is an equidigital number, since it uses as much as digits as its factorization.

111100211102051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20, while the sum is 17.

Adding to 111100211102051 its reverse (150201112001111), we get a palindrome (261301323103162).

The spelling of 111100211102051 in words is "one hundred eleven trillion, one hundred billion, two hundred eleven million, one hundred two thousand, fifty-one".