10111111212047 has 2 divisors, whose sum is σ = 10111111212048. Its totient is φ = 10111111212046.

The previous prime is 10111111211953. The next prime is 10111111212053. The reversal of 10111111212047 is 74021211111101.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10111111212047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10111111212347) 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, 5055555606023 + 5055555606024.

It is an arithmetic number, because the mean of its divisors is an integer number (5055555606024).

Almost surely, 2^{10111111212047} is an apocalyptic number.

10111111212047 is a deficient number, since it is larger than the sum of its proper divisors (1).

10111111212047 is an equidigital number, since it uses as much as digits as its factorization.

10111111212047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 23.

Adding to 10111111212047 its reverse (74021211111101), we get a palindrome (84132322323148).

The spelling of 10111111212047 in words is "ten trillion, one hundred eleven billion, one hundred eleven million, two hundred twelve thousand, forty-seven".