12170349317 has 16 divisors (see below), whose sum is σ = 14756152320. Its totient is φ = 9798759168.

The previous prime is 12170349307. The next prime is 12170349371. The reversal of 12170349317 is 71394307121.

It is a cyclic number.

It is not a de Polignac number, because 12170349317 - 2¹² = 12170345221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12170349307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39893 + ... + 161034.

It is an arithmetic number, because the mean of its divisors is an integer number (922259520).

Almost surely, 2^12170349317 is an apocalyptic number.

12170349317 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12170349317 is a deficient number, since it is larger than the sum of its proper divisors (2585803003).

12170349317 is a wasteful number, since it uses less digits than its factorization.

12170349317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201460.

The product of its (nonzero) digits is 31752, while the sum is 38.

The spelling of 12170349317 in words is "twelve billion, one hundred seventy million, three hundred forty-nine thousand, three hundred seventeen".