2001203330231 has 12 divisors (see below), whose sum is σ = 2325197465136. Its totient is φ = 1687197165120.

The previous prime is 2001203330227. The next prime is 2001203330257. The reversal of 2001203330231 is 1320333021002.

It is not a de Polignac number, because 2001203330231 - 2² = 2001203330227 is a prime.

It is a super-2 number, since 2×2001203330231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001203330221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38389190 + ... + 38441283.

It is an arithmetic number, because the mean of its divisors is an integer number (193766455428).

Almost surely, 2^{2001203330231} is an apocalyptic number.

2001203330231 is a deficient number, since it is larger than the sum of its proper divisors (323994134905).

2001203330231 is an frugal number, since it uses more digits than its factorization.

2001203330231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76830602 (or 76830541 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 2001203330231 its reverse (1320333021002), we get a palindrome (3321536351233).

The spelling of 2001203330231 in words is "two trillion, one billion, two hundred three million, three hundred thirty thousand, two hundred thirty-one".