2001023300233 has 4 divisors (see below), whose sum is σ = 2001851198100. Its totient is φ = 2000195402368.

The previous prime is 2001023300207. The next prime is 2001023300239. The reversal of 2001023300233 is 3320033201002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1759875519609 + 241147780624 = 1326603^2 + 491068^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001023300233 - 2⁹ = 2001023299721 is a prime.

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 2001023300233.

It is not an unprimeable number, because it can be changed into a prime (2001023300239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413945308 + ... + 413950141.

It is an arithmetic number, because the mean of its divisors is an integer number (500462799525).

Almost surely, 2^{2001023300233} is an apocalyptic number.

It is an amenable number.

2001023300233 is a deficient number, since it is larger than the sum of its proper divisors (827897867).

2001023300233 is an equidigital number, since it uses as much as digits as its factorization.

2001023300233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827897866.

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

Adding to 2001023300233 its reverse (3320033201002), we get a palindrome (5321056501235).

The spelling of 2001023300233 in words is "two trillion, one billion, twenty-three million, three hundred thousand, two hundred thirty-three".