20324202122409 has 16 divisors (see below), whose sum is σ = 27389477411712. Its totient is φ = 13404461349888.

The previous prime is 20324202122369. The next prime is 20324202122437. The reversal of 20324202122409 is 90422120242302.

It is not a de Polignac number, because 20324202122409 - 2²³ = 20324193733801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20324202122409.

It is not an unprimeable number, because it can be changed into a prime (20324202102409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32677944 + ... + 33294089.

It is an arithmetic number, because the mean of its divisors is an integer number (1711842338232).

Almost surely, 2^{20324202122409} is an apocalyptic number.

It is an amenable number.

20324202122409 is a deficient number, since it is larger than the sum of its proper divisors (7065275289303).

20324202122409 is a wasteful number, since it uses less digits than its factorization.

20324202122409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65973136.

The product of its (nonzero) digits is 27648, while the sum is 33.

The spelling of 20324202122409 in words is "twenty trillion, three hundred twenty-four billion, two hundred two million, one hundred twenty-two thousand, four hundred nine".