12171703 has 4 divisors (see below), whose sum is σ = 12283480. Its totient is φ = 12059928.

The previous prime is 12171697. The next prime is 12171713. The reversal of 12171703 is 30717121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30717121 = 23 ⋅1335527.

It is a cyclic number.

It is not a de Polignac number, because 12171703 - 2⁵ = 12171671 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 (12171713) 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, 55725 + ... + 55942.

It is an arithmetic number, because the mean of its divisors is an integer number (3070870).

Almost surely, 2^12171703 is an apocalyptic number.

12171703 is a deficient number, since it is larger than the sum of its proper divisors (111777).

12171703 is a wasteful number, since it uses less digits than its factorization.

12171703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111776.

The product of its (nonzero) digits is 294, while the sum is 22.

The square root of 12171703 is about 3488.7967839930. The cubic root of 12171703 is about 230.0296307131.

Adding to 12171703 its reverse (30717121), we get a palindrome (42888824).

It can be divided in two parts, 121 and 71703, that added together give a square (71824 = 268²).

The spelling of 12171703 in words is "twelve million, one hundred seventy-one thousand, seven hundred three".