20330311233 has 8 divisors (see below), whose sum is σ = 27108579168. Its totient is φ = 13552792064.

The previous prime is 20330311229. The next prime is 20330311259. The reversal of 20330311233 is 33211303302.

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 20330311233 - 2² = 20330311229 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20330381233) 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, 120435 + ... + 234872.

It is an arithmetic number, because the mean of its divisors is an integer number (3388572396).

Almost surely, 2^20330311233 is an apocalyptic number.

It is an amenable number.

20330311233 is a deficient number, since it is larger than the sum of its proper divisors (6778267935).

20330311233 is a wasteful number, since it uses less digits than its factorization.

20330311233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374383.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 20330311233 its reverse (33211303302), we get a palindrome (53541614535).

The spelling of 20330311233 in words is "twenty billion, three hundred thirty million, three hundred eleven thousand, two hundred thirty-three".