109772313171 has 4 divisors (see below), whose sum is σ = 146363084232. Its totient is φ = 73181542112.

The previous prime is 109772313163. The next prime is 109772313197. The reversal of 109772313171 is 171313277901.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 109772313171 - 2³ = 109772313163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109772313071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18295385526 + ... + 18295385531.

It is an arithmetic number, because the mean of its divisors is an integer number (36590771058).

Almost surely, 2^109772313171 is an apocalyptic number.

109772313171 is a deficient number, since it is larger than the sum of its proper divisors (36590771061).

109772313171 is an equidigital number, since it uses as much as digits as its factorization.

109772313171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36590771060.

The product of its (nonzero) digits is 55566, while the sum is 42.

The spelling of 109772313171 in words is "one hundred nine billion, seven hundred seventy-two million, three hundred thirteen thousand, one hundred seventy-one".