20010330233 has 6 divisors (see below), whose sum is σ = 21256648686. Its totient is φ = 18833251712.

The previous prime is 20010330203. The next prime is 20010330239. The reversal of 20010330233 is 33203301002.

It can be written as a sum of positive squares in 3 ways, for example, as 8773694224 + 11236636009 = 93668^2 + 106003^2 .

It is not a de Polignac number, because 20010330233 - 2¹² = 20010326137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20010330239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34619660 + ... + 34620237.

It is an arithmetic number, because the mean of its divisors is an integer number (3542774781).

Almost surely, 2^20010330233 is an apocalyptic number.

It is an amenable number.

20010330233 is a deficient number, since it is larger than the sum of its proper divisors (1246318453).

20010330233 is an equidigital number, since it uses as much as digits as its factorization.

20010330233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69239931 (or 69239914 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 17.

Adding to 20010330233 its reverse (33203301002), we get a palindrome (53213631235).

The spelling of 20010330233 in words is "twenty billion, ten million, three hundred thirty thousand, two hundred thirty-three".