20033002121321 has 4 divisors (see below), whose sum is σ = 22894859567232. Its totient is φ = 17171144675412.

The previous prime is 20033002121299. The next prime is 20033002121323. The reversal of 20033002121321 is 12312120033002.

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.

It is not a de Polignac number, because 20033002121321 - 2¹⁸ = 20033001859177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20033002121293 and 20033002121302.

It is not an unprimeable number, because it can be changed into a prime (20033002121323) 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, 1430928722945 + ... + 1430928722958.

It is an arithmetic number, because the mean of its divisors is an integer number (5723714891808).

Almost surely, 2^{20033002121321} is an apocalyptic number.

It is an amenable number.

20033002121321 is a deficient number, since it is larger than the sum of its proper divisors (2861857445911).

20033002121321 is an equidigital number, since it uses as much as digits as its factorization.

20033002121321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2861857445910.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20033002121321 its reverse (12312120033002), we get a palindrome (32345122154323).

The spelling of 20033002121321 in words is "twenty trillion, thirty-three billion, two million, one hundred twenty-one thousand, three hundred twenty-one".