20324392003 has 4 divisors (see below), whose sum is σ = 20356602448. Its totient is φ = 20292181560.

The previous prime is 20324392001. The next prime is 20324392027. The reversal of 20324392003 is 30029342302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20324392003 - 2¹ = 20324392001 is a prime.

It is a super-2 number, since 2×20324392003² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20324392001) 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, 16104276 + ... + 16105537.

It is an arithmetic number, because the mean of its divisors is an integer number (5089150612).

Almost surely, 2^20324392003 is an apocalyptic number.

20324392003 is a deficient number, since it is larger than the sum of its proper divisors (32210445).

20324392003 is an equidigital number, since it uses as much as digits as its factorization.

20324392003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32210444.

The product of its (nonzero) digits is 7776, while the sum is 28.

The spelling of 20324392003 in words is "twenty billion, three hundred twenty-four million, three hundred ninety-two thousand, three".