20013233223 has 8 divisors (see below), whose sum is σ = 26704516336. Its totient is φ = 13332052800.

The previous prime is 20013233213. The next prime is 20013233249. The reversal of 20013233223 is 32233231002.

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

It is not a de Polignac number, because 20013233223 - 2²² = 20009038919 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 20013233223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013233203) 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, 2521048 + ... + 2528973.

It is an arithmetic number, because the mean of its divisors is an integer number (3338064542).

Almost surely, 2^20013233223 is an apocalyptic number.

20013233223 is a deficient number, since it is larger than the sum of its proper divisors (6691283113).

20013233223 is a wasteful number, since it uses less digits than its factorization.

20013233223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5051345.

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

Adding to 20013233223 its reverse (32233231002), we get a palindrome (52246464225).

The spelling of 20013233223 in words is "twenty billion, thirteen million, two hundred thirty-three thousand, two hundred twenty-three".