20330312233 has 32 divisors (see below), whose sum is σ = 25512553728. Its totient is φ = 15738624000.

The previous prime is 20330312231. The next prime is 20330312239. The reversal of 20330312233 is 33221303302.

It is not a de Polignac number, because 20330312233 - 2¹ = 20330312231 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20330312231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8551741 + ... + 8554117.

It is an arithmetic number, because the mean of its divisors is an integer number (797267304).

Almost surely, 2^20330312233 is an apocalyptic number.

It is an amenable number.

20330312233 is a deficient number, since it is larger than the sum of its proper divisors (5182241495).

20330312233 is a wasteful number, since it uses less digits than its factorization.

20330312233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3073.

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 20330312233 its reverse (33221303302), we get a palindrome (53551615535).

The spelling of 20330312233 in words is "twenty billion, three hundred thirty million, three hundred twelve thousand, two hundred thirty-three".