2001117533 has 4 divisors (see below), whose sum is σ = 2011173600. Its totient is φ = 1991061468.

The previous prime is 2001117523. The next prime is 2001117551. The reversal of 2001117533 is 3357111002.

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.

It is a cyclic number.

It is not a de Polignac number, because 2001117533 - 2¹² = 2001113437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2001117499 and 2001117508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001117523) 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 3 ways as a sum of consecutive naturals, for example, 5027735 + ... + 5028132.

It is an arithmetic number, because the mean of its divisors is an integer number (502793400).

Almost surely, 2^2001117533 is an apocalyptic number.

It is an amenable number.

2001117533 is a deficient number, since it is larger than the sum of its proper divisors (10056067).

2001117533 is a wasteful number, since it uses less digits than its factorization.

2001117533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10056066.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 2001117533 is about 44733.8522038959. The cubic root of 2001117533 is about 1260.1556734255.

Adding to 2001117533 its reverse (3357111002), we get a palindrome (5358228535).

The spelling of 2001117533 in words is "two billion, one million, one hundred seventeen thousand, five hundred thirty-three".