33020321223 has 4 divisors (see below), whose sum is σ = 44027094968. Its totient is φ = 22013547480.

The previous prime is 33020321209. The next prime is 33020321239. The reversal of 33020321223 is 32212302033.

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

It is not a de Polignac number, because 33020321223 - 2²² = 33016126919 is a prime.

It is a super-2 number, since 2×33020321223² (a number of 22 digits) contains 22 as substring.

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 33020321223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33020321273) 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, 5503386868 + ... + 5503386873.

It is an arithmetic number, because the mean of its divisors is an integer number (11006773742).

Almost surely, 2^33020321223 is an apocalyptic number.

33020321223 is a deficient number, since it is larger than the sum of its proper divisors (11006773745).

33020321223 is a wasteful number, since it uses less digits than its factorization.

33020321223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11006773744.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 33020321223 its reverse (32212302033), we get a palindrome (65232623256).

The spelling of 33020321223 in words is "thirty-three billion, twenty million, three hundred twenty-one thousand, two hundred twenty-three".