20213133223 has 8 divisors (see below), whose sum is σ = 21278412720. Its totient is φ = 19147996800.

The previous prime is 20213133211. The next prime is 20213133247. The reversal of 20213133223 is 32233131202.

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 20213133223 - 2²⁵ = 20179578791 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20213133194 and 20213133203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213133323) 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, 375711 + ... + 426127.

It is an arithmetic number, because the mean of its divisors is an integer number (2659801590).

Almost surely, 2^20213133223 is an apocalyptic number.

20213133223 is a deficient number, since it is larger than the sum of its proper divisors (1065279497).

20213133223 is a wasteful number, since it uses less digits than its factorization.

20213133223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71537.

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

Adding to 20213133223 its reverse (32233131202), we get a palindrome (52446264425).

The spelling of 20213133223 in words is "twenty billion, two hundred thirteen million, one hundred thirty-three thousand, two hundred twenty-three".