20001333223 has 8 divisors (see below), whose sum is σ = 20166955776. Its totient is φ = 19835907000.

The previous prime is 20001333217. The next prime is 20001333229. The reversal of 20001333223 is 32233310002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20001333217) and next prime (20001333229).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20001333223 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 20001333223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001333229) 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, 159148 + ... + 255598.

It is an arithmetic number, because the mean of its divisors is an integer number (2520869472).

Almost surely, 2^20001333223 is an apocalyptic number.

20001333223 is a deficient number, since it is larger than the sum of its proper divisors (165622553).

20001333223 is a wasteful number, since it uses less digits than its factorization.

20001333223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98165.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 20001333223 its reverse (32233310002), we get a palindrome (52234643225).

The spelling of 20001333223 in words is "twenty billion, one million, three hundred thirty-three thousand, two hundred twenty-three".