109318171927 has 2 divisors, whose sum is σ = 109318171928. Its totient is φ = 109318171926.

The previous prime is 109318171891. The next prime is 109318171987. The reversal of 109318171927 is 729171813901.

It is a weak prime.

It is an emirp because it is prime and its reverse (729171813901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109318171927 - 2¹¹ = 109318169879 is a prime.

It is a super-2 number, since 2×109318171927² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109318171987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54659085963 + 54659085964.

It is an arithmetic number, because the mean of its divisors is an integer number (54659085964).

Almost surely, 2^109318171927 is an apocalyptic number.

109318171927 is a deficient number, since it is larger than the sum of its proper divisors (1).

109318171927 is an equidigital number, since it uses as much as digits as its factorization.

109318171927 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 49.

The spelling of 109318171927 in words is "one hundred nine billion, three hundred eighteen million, one hundred seventy-one thousand, nine hundred twenty-seven".