128497810213 has 2 divisors, whose sum is σ = 128497810214. Its totient is φ = 128497810212.

The previous prime is 128497810201. The next prime is 128497810241. The reversal of 128497810213 is 312018794821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123048713089 + 5449097124 = 350783^2 + 73818^2 .

It is a cyclic number.

It is not a de Polignac number, because 128497810213 - 2¹³ = 128497802021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128497810283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64248905106 + 64248905107.

It is an arithmetic number, because the mean of its divisors is an integer number (64248905107).

Almost surely, 2^128497810213 is an apocalyptic number.

It is an amenable number.

128497810213 is a deficient number, since it is larger than the sum of its proper divisors (1).

128497810213 is an equidigital number, since it uses as much as digits as its factorization.

128497810213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 46.

The spelling of 128497810213 in words is "one hundred twenty-eight billion, four hundred ninety-seven million, eight hundred ten thousand, two hundred thirteen".