1012110111109 has 2 divisors, whose sum is σ = 1012110111110. Its totient is φ = 1012110111108.

The previous prime is 1012110111073. The next prime is 1012110111137. The reversal of 1012110111109 is 9011110112101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 728470785025 + 283639326084 = 853505^2 + 532578^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012110111109 - 2⁷ = 1012110110981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012110111179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506055055554 + 506055055555.

It is an arithmetic number, because the mean of its divisors is an integer number (506055055555).

Almost surely, 2^{1012110111109} is an apocalyptic number.

It is an amenable number.

1012110111109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012110111109 is an equidigital number, since it uses as much as digits as its factorization.

1012110111109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 19.

The spelling of 1012110111109 in words is "one trillion, twelve billion, one hundred ten million, one hundred eleven thousand, one hundred nine".