213424301309 has 4 divisors (see below), whose sum is σ = 213444349920. Its totient is φ = 213404252700.

The previous prime is 213424301287. The next prime is 213424301351. The reversal of 213424301309 is 903103424312.

213424301309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213424301309 is a prime.

It is a super-2 number, since 2×213424301309² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213424301359) 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 in 3 ways as a sum of consecutive naturals, for example, 10008329 + ... + 10029630.

It is an arithmetic number, because the mean of its divisors is an integer number (53361087480).

Almost surely, 2^213424301309 is an apocalyptic number.

It is an amenable number.

213424301309 is a deficient number, since it is larger than the sum of its proper divisors (20048611).

213424301309 is a wasteful number, since it uses less digits than its factorization.

213424301309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20048610.

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 213424301309 in words is "two hundred thirteen billion, four hundred twenty-four million, three hundred one thousand, three hundred nine".