20003312233 has 8 divisors (see below), whose sum is σ = 21370389920. Its totient is φ = 18667661760.

The previous prime is 20003312209. The next prime is 20003312239. The reversal of 20003312233 is 33221330002.

It is a happy number.

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 20003312233 - 2⁹ = 20003311721 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

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 20003312233.

It is not an unprimeable number, because it can be changed into a prime (20003312239) 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, 7855488 + ... + 7858033.

It is an arithmetic number, because the mean of its divisors is an integer number (2671298740).

Almost surely, 2^20003312233 is an apocalyptic number.

It is an amenable number.

20003312233 is a deficient number, since it is larger than the sum of its proper divisors (1367077687).

20003312233 is a wasteful number, since it uses less digits than its factorization.

20003312233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15713607.

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

Adding to 20003312233 its reverse (33221330002), we get a palindrome (53224642235).

The spelling of 20003312233 in words is "twenty billion, three million, three hundred twelve thousand, two hundred thirty-three".