1101110111993 has 2 divisors, whose sum is σ = 1101110111994. Its totient is φ = 1101110111992.

The previous prime is 1101110111989. The next prime is 1101110112007. The reversal of 1101110111993 is 3991110111011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 932590009849 + 168520102144 = 965707^2 + 410512^2 .

It is an emirp because it is prime and its reverse (3991110111011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1101110111993 - 2² = 1101110111989 is a prime.

It is not a weakly prime, because it can be changed into another prime (1101110111963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550555055996 + 550555055997.

It is an arithmetic number, because the mean of its divisors is an integer number (550555055997).

Almost surely, 2^{1101110111993} is an apocalyptic number.

It is an amenable number.

1101110111993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101110111993 is an equidigital number, since it uses as much as digits as its factorization.

1101110111993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 243, while the sum is 29.

The spelling of 1101110111993 in words is "one trillion, one hundred one billion, one hundred ten million, one hundred eleven thousand, nine hundred ninety-three".