1000111012111 has 2 divisors, whose sum is σ = 1000111012112. Its totient is φ = 1000111012110.

The previous prime is 1000111012099. The next prime is 1000111012139. The reversal of 1000111012111 is 1112101110001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1000111012111 - 2⁵ = 1000111012079 is a prime.

It is a super-3 number, since 3×1000111012111³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000111012171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500055506055 + 500055506056.

It is an arithmetic number, because the mean of its divisors is an integer number (500055506056).

Almost surely, 2^{1000111012111} is an apocalyptic number.

1000111012111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000111012111 is an equidigital number, since it uses as much as digits as its factorization.

1000111012111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 1000111012111 its reverse (1112101110001), we get a palindrome (2112212122112).

The spelling of 1000111012111 in words is "one trillion, one hundred eleven million, twelve thousand, one hundred eleven".