213403433389 has 2 divisors, whose sum is σ = 213403433390. Its totient is φ = 213403433388.

The previous prime is 213403433251. The next prime is 213403433417. The reversal of 213403433389 is 983334304312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 178879935364 + 34523498025 = 422942^2 + 185805^2 .

It is a cyclic number.

It is not a de Polignac number, because 213403433389 - 2³³ = 204813498797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213403430389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106701716694 + 106701716695.

It is an arithmetic number, because the mean of its divisors is an integer number (106701716695).

Almost surely, 2^213403433389 is an apocalyptic number.

It is an amenable number.

213403433389 is a deficient number, since it is larger than the sum of its proper divisors (1).

213403433389 is an equidigital number, since it uses as much as digits as its factorization.

213403433389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 43.

The spelling of 213403433389 in words is "two hundred thirteen billion, four hundred three million, four hundred thirty-three thousand, three hundred eighty-nine".