2001303133 has 4 divisors (see below), whose sum is σ = 2001479040. Its totient is φ = 2001127228.

The previous prime is 2001303131. The next prime is 2001303167. The reversal of 2001303133 is 3313031002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3313031002 = 2 ⋅1656515501.

It is a cyclic number.

It is not a de Polignac number, because 2001303133 - 2¹ = 2001303131 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 (2001303131) 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, 69613 + ... + 94066.

It is an arithmetic number, because the mean of its divisors is an integer number (500369760).

Almost surely, 2^2001303133 is an apocalyptic number.

It is an amenable number.

2001303133 is a deficient number, since it is larger than the sum of its proper divisors (175907).

2001303133 is a wasteful number, since it uses less digits than its factorization.

2001303133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175906.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 2001303133 is about 44735.9266473826. The cubic root of 2001303133 is about 1260.1946312676.

Adding to 2001303133 its reverse (3313031002), we get a palindrome (5314334135).

The spelling of 2001303133 in words is "two billion, one million, three hundred three thousand, one hundred thirty-three".