172310103 has 12 divisors (see below), whose sum is σ = 284448528. Its totient is φ = 98462880.

The previous prime is 172310081. The next prime is 172310111. The reversal of 172310103 is 301013271.

It is not a de Polignac number, because 172310103 - 2⁸ = 172309847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172311103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1367478 + ... + 1367603.

It is an arithmetic number, because the mean of its divisors is an integer number (23704044).

Almost surely, 2^172310103 is an apocalyptic number.

172310103 is a deficient number, since it is larger than the sum of its proper divisors (112138425).

172310103 is a wasteful number, since it uses less digits than its factorization.

172310103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2735094 (or 2735091 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 172310103 is about 13126.6942906430. The cubic root of 172310103 is about 556.4637959800.

Adding to 172310103 its reverse (301013271), we get a palindrome (473323374).

The spelling of 172310103 in words is "one hundred seventy-two million, three hundred ten thousand, one hundred three".