2001002320133 has 4 divisors (see below), whose sum is σ = 2001180087660. Its totient is φ = 2000824552608.

The previous prime is 2001002320091. The next prime is 2001002320181. The reversal of 2001002320133 is 3310232001002.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1500620100004 + 500382220129 = 1224998^2 + 707377^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001002320133 - 2¹⁰ = 2001002319109 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 (2001008320133) 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, 88866878 + ... + 88889391.

It is an arithmetic number, because the mean of its divisors is an integer number (500295021915).

Almost surely, 2^{2001002320133} is an apocalyptic number.

It is an amenable number.

2001002320133 is a deficient number, since it is larger than the sum of its proper divisors (177767527).

2001002320133 is a wasteful number, since it uses less digits than its factorization.

2001002320133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177767526.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 2001002320133 its reverse (3310232001002), we get a palindrome (5311234321135).

The spelling of 2001002320133 in words is "two trillion, one billion, two million, three hundred twenty thousand, one hundred thirty-three".