20321023003 has 8 divisors (see below), whose sum is σ = 20564056656. Its totient is φ = 20079321600.

The previous prime is 20321022983. The next prime is 20321023027. The reversal of 20321023003 is 30032012302.

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 20321023003 - 2¹⁷ = 20320891931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20321020003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302358 + ... + 363403.

It is an arithmetic number, because the mean of its divisors is an integer number (2570507082).

Almost surely, 2^20321023003 is an apocalyptic number.

20321023003 is a deficient number, since it is larger than the sum of its proper divisors (243033653).

20321023003 is a wasteful number, since it uses less digits than its factorization.

20321023003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666125.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 20321023003 its reverse (30032012302), we get a palindrome (50353035305).

The spelling of 20321023003 in words is "twenty billion, three hundred twenty-one million, twenty-three thousand, three".