20340134009 has 8 divisors (see below), whose sum is σ = 21907556160. Its totient is φ = 18773111376.

The previous prime is 20340133993. The next prime is 20340134093. The reversal of 20340134009 is 90043104302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20340134009 - 2⁴ = 20340133993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20340134909) 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 7 ways as a sum of consecutive naturals, for example, 10382 + ... + 201960.

It is an arithmetic number, because the mean of its divisors is an integer number (2738444520).

Almost surely, 2^20340134009 is an apocalyptic number.

It is an amenable number.

20340134009 is a deficient number, since it is larger than the sum of its proper divisors (1567422151).

20340134009 is a wasteful number, since it uses less digits than its factorization.

20340134009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199759.

The product of its (nonzero) digits is 2592, while the sum is 26.

The spelling of 20340134009 in words is "twenty billion, three hundred forty million, one hundred thirty-four thousand, nine".