171612111103 has 8 divisors (see below), whose sum is σ = 173394000000. Its totient is φ = 169832448408.

The previous prime is 171612111079. The next prime is 171612111149. The reversal of 171612111103 is 301111216171.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-171612111103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171612111193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401353 + ... + 710146.

It is an arithmetic number, because the mean of its divisors is an integer number (21674250000).

Almost surely, 2^171612111103 is an apocalyptic number.

171612111103 is a deficient number, since it is larger than the sum of its proper divisors (1781888897).

171612111103 is a wasteful number, since it uses less digits than its factorization.

171612111103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113101.

The product of its (nonzero) digits is 252, while the sum is 25.

Adding to 171612111103 its reverse (301111216171), we get a palindrome (472723327274).

The spelling of 171612111103 in words is "one hundred seventy-one billion, six hundred twelve million, one hundred eleven thousand, one hundred three".