20333121223 has 4 divisors (see below), whose sum is σ = 20334170448. Its totient is φ = 20332072000.

The previous prime is 20333121203. The next prime is 20333121233. The reversal of 20333121223 is 32212133302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32212133302 = 2 ⋅16106066651.

It is a cyclic number.

It is not a de Polignac number, because 20333121223 - 2¹⁷ = 20332990151 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20333121194 and 20333121203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20333121203) 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, 494986 + ... + 534487.

It is an arithmetic number, because the mean of its divisors is an integer number (5083542612).

Almost surely, 2^20333121223 is an apocalyptic number.

20333121223 is a deficient number, since it is larger than the sum of its proper divisors (1049225).

20333121223 is a wasteful number, since it uses less digits than its factorization.

20333121223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049224.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 20333121223 its reverse (32212133302), we get a palindrome (52545254525).

The spelling of 20333121223 in words is "twenty billion, three hundred thirty-three million, one hundred twenty-one thousand, two hundred twenty-three".