20021022002323 has 8 divisors (see below), whose sum is σ = 20025053520192. Its totient is φ = 20016990779136.

The previous prime is 20021022002279. The next prime is 20021022002327. The reversal of 20021022002323 is 32320022012002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20021022002323 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20021022002323.

It is not an unprimeable number, because it can be changed into a prime (20021022002327) 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, 176609286 + ... + 176722612.

It is an arithmetic number, because the mean of its divisors is an integer number (2503131690024).

Almost surely, 2^{20021022002323} is an apocalyptic number.

20021022002323 is a deficient number, since it is larger than the sum of its proper divisors (4031517869).

20021022002323 is a wasteful number, since it uses less digits than its factorization.

20021022002323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147341.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20021022002323 its reverse (32320022012002), we get a palindrome (52341044014325).

The spelling of 20021022002323 in words is "twenty trillion, twenty-one billion, twenty-two million, two thousand, three hundred twenty-three".