2128303 has 2 divisors, whose sum is σ = 2128304. Its totient is φ = 2128302.

The previous prime is 2128283. The next prime is 2128309. The reversal of 2128303 is 3038212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2128303 - 2¹⁷ = 1997231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2128309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1064151 + 1064152.

It is an arithmetic number, because the mean of its divisors is an integer number (1064152).

2^2128303 is an apocalyptic number.

2128303 is a deficient number, since it is larger than the sum of its proper divisors (1).

2128303 is an equidigital number, since it uses as much as digits as its factorization.

2128303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2128303 is about 1458.8704534673. The cubic root of 2128303 is about 128.6306563686.

Subtracting 2128303 from its reverse (3038212), we obtain a palindrome (909909).

It can be divided in two parts, 212 and 8303, that added together give a triangular number (8515 = T₁₃₀).

The spelling of 2128303 in words is "two million, one hundred twenty-eight thousand, three hundred three".