20303143233 has 8 divisors (see below), whose sum is σ = 27137047200. Its totient is φ = 13502334048.

The previous prime is 20303143229. The next prime is 20303143241. The reversal of 20303143233 is 33234130302.

It is a happy number.

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

It is not a de Polignac number, because 20303143233 - 2² = 20303143229 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20303143213) 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, 8272263 + ... + 8274716.

It is an arithmetic number, because the mean of its divisors is an integer number (3392130900).

Almost surely, 2^20303143233 is an apocalyptic number.

It is an amenable number.

20303143233 is a deficient number, since it is larger than the sum of its proper divisors (6833903967).

20303143233 is a wasteful number, since it uses less digits than its factorization.

20303143233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16547391.

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 20303143233 its reverse (33234130302), we get a palindrome (53537273535).

The spelling of 20303143233 in words is "twenty billion, three hundred three million, one hundred forty-three thousand, two hundred thirty-three".