2128498213 has 2 divisors, whose sum is σ = 2128498214. Its totient is φ = 2128498212.

The previous prime is 2128498201. The next prime is 2128498327. The reversal of 2128498213 is 3128948212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1974291489 + 154206724 = 44433^2 + 12418^2 .

It is a cyclic number.

It is not a de Polignac number, because 2128498213 - 2¹⁷ = 2128367141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2128498513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1064249106 + 1064249107.

It is an arithmetic number, because the mean of its divisors is an integer number (1064249107).

Almost surely, 2^2128498213 is an apocalyptic number.

It is an amenable number.

2128498213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2128498213 is an equidigital number, since it uses as much as digits as its factorization.

2128498213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 40.

The square root of 2128498213 is about 46135.6501308912. The cubic root of 2128498213 is about 1286.3458901798.

The spelling of 2128498213 in words is "two billion, one hundred twenty-eight million, four hundred ninety-eight thousand, two hundred thirteen".