2001230302303 has 4 divisors (see below), whose sum is σ = 2003565461040. Its totient is φ = 1998895143568.

The previous prime is 2001230302273. The next prime is 2001230302307. The reversal of 2001230302303 is 3032030321002.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2001230302303 - 2³⁷ = 1863791348831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001230302307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1167578083 + ... + 1167579796.

It is an arithmetic number, because the mean of its divisors is an integer number (500891365260).

Almost surely, 2^{2001230302303} is an apocalyptic number.

2001230302303 is a deficient number, since it is larger than the sum of its proper divisors (2335158737).

2001230302303 is an equidigital number, since it uses as much as digits as its factorization.

2001230302303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2335158736.

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

Adding to 2001230302303 its reverse (3032030321002), we get a palindrome (5033260623305).

The spelling of 2001230302303 in words is "two trillion, one billion, two hundred thirty million, three hundred two thousand, three hundred three".