111779999977111 has 2 divisors, whose sum is σ = 111779999977112. Its totient is φ = 111779999977110.

The previous prime is 111779999977097. The next prime is 111779999977229.

111779999977111 is nontrivially palindromic in base 10.

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111779999977111 is a prime.

It is a zygodrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111779999927111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55889999988555 + 55889999988556.

It is an arithmetic number, because the mean of its divisors is an integer number (55889999988556).

Almost surely, 2^{111779999977111} is an apocalyptic number.

111779999977111 is a deficient number, since it is larger than the sum of its proper divisors (1).

111779999977111 is an equidigital number, since it uses as much as digits as its factorization.

111779999977111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141776649, while the sum is 79.

The spelling of 111779999977111 in words is "one hundred eleven trillion, seven hundred seventy-nine billion, nine hundred ninety-nine million, nine hundred seventy-seven thousand, one hundred eleven".