2171203 has 2 divisors, whose sum is σ = 2171204. Its totient is φ = 2171202.

The previous prime is 2171161. The next prime is 2171219. The reversal of 2171203 is 3021712.

It is a happy number.

It is an a-pointer prime, because the next prime (2171219) can be obtained adding 2171203 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2171203 - 2¹³ = 2163011 is a prime.

It is an Ulam number.

It is the 1474-th Hogben number.

It is equal to p₁₆₀₇₁₁ and since 2171203 and 160711 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (2171243) by changing a digit.

It is a nontrivial repunit in base 1473.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1085601 + 1085602.

It is an arithmetic number, because the mean of its divisors is an integer number (1085602).

2^2171203 is an apocalyptic number.

2171203 is a deficient number, since it is larger than the sum of its proper divisors (1).

2171203 is an equidigital number, since it uses as much as digits as its factorization.

2171203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 2171203 is about 1473.5002544961. The cubic root of 2171203 is about 129.4891788437.

Adding to 2171203 its reverse (3021712), we get a palindrome (5192915).

The spelling of 2171203 in words is "two million, one hundred seventy-one thousand, two hundred three".