2001530052243 has 12 divisors (see below), whose sum is σ = 2891209816248. Its totient is φ = 1334302205760.

The previous prime is 2001530052217. The next prime is 2001530052253. The reversal of 2001530052243 is 3422500351002.

It is a happy number.

It is not a de Polignac number, because 2001530052243 - 2¹⁰ = 2001530051219 is a prime.

It is a super-2 number, since 2×2001530052243² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2001530052253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4015005 + ... + 4485902.

It is an arithmetic number, because the mean of its divisors is an integer number (240934151354).

Almost surely, 2^{2001530052243} is an apocalyptic number.

2001530052243 is a deficient number, since it is larger than the sum of its proper divisors (889679764005).

2001530052243 is a wasteful number, since it uses less digits than its factorization.

2001530052243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8527074 (or 8527071 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The spelling of 2001530052243 in words is "two trillion, one billion, five hundred thirty million, fifty-two thousand, two hundred forty-three".