110668993 has 2 divisors, whose sum is σ = 110668994. Its totient is φ = 110668992.

The previous prime is 110668981. The next prime is 110669023. The reversal of 110668993 is 399866011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57335184 + 53333809 = 7572^2 + 7303^2 .

It is an emirp because it is prime and its reverse (399866011) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110668993 is a prime.

It is not a weakly prime, because it can be changed into another prime (110668913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55334496 + 55334497.

It is an arithmetic number, because the mean of its divisors is an integer number (55334497).

Almost surely, 2^110668993 is an apocalyptic number.

It is an amenable number.

110668993 is a deficient number, since it is larger than the sum of its proper divisors (1).

110668993 is an equidigital number, since it uses as much as digits as its factorization.

110668993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 110668993 is about 10519.9331271639. The cubic root of 110668993 is about 480.1113644960. Note that the first 3 decimals are identical.

The spelling of 110668993 in words is "one hundred ten million, six hundred sixty-eight thousand, nine hundred ninety-three".