20324334413 has 4 divisors (see below), whose sum is σ = 20385737568. Its totient is φ = 20262931260.

The previous prime is 20324334403. The next prime is 20324334427. The reversal of 20324334413 is 31443342302.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31443342302 = 2 ⋅15721671151.

It is a cyclic number.

It is not a de Polignac number, because 20324334413 - 2¹⁰ = 20324333389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20324334403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30701081 + ... + 30701742.

It is an arithmetic number, because the mean of its divisors is an integer number (5096434392).

Almost surely, 2^20324334413 is an apocalyptic number.

It is an amenable number.

20324334413 is a deficient number, since it is larger than the sum of its proper divisors (61403155).

20324334413 is an equidigital number, since it uses as much as digits as its factorization.

20324334413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61403154.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 20324334413 its reverse (31443342302), we get a palindrome (51767676715).

The spelling of 20324334413 in words is "twenty billion, three hundred twenty-four million, three hundred thirty-four thousand, four hundred thirteen".