109997520179 has 2 divisors, whose sum is σ = 109997520180. Its totient is φ = 109997520178.

The previous prime is 109997520133. The next prime is 109997520203. The reversal of 109997520179 is 971025799901.

It is a strong prime.

It is an emirp because it is prime and its reverse (971025799901) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109997520179 is a prime.

It is not a weakly prime, because it can be changed into another prime (109997520119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54998760089 + 54998760090.

It is an arithmetic number, because the mean of its divisors is an integer number (54998760090).

Almost surely, 2^109997520179 is an apocalyptic number.

109997520179 is a deficient number, since it is larger than the sum of its proper divisors (1).

109997520179 is an equidigital number, since it uses as much as digits as its factorization.

109997520179 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3214890, while the sum is 59.

The spelling of 109997520179 in words is "one hundred nine billion, nine hundred ninety-seven million, five hundred twenty thousand, one hundred seventy-nine".