2001321303133 has 16 divisors (see below), whose sum is σ = 2050792740864. Its totient is φ = 1952439039360.

The previous prime is 2001321303119. The next prime is 2001321303161. The reversal of 2001321303133 is 3313031231002.

It is a cyclic number.

It is not a de Polignac number, because 2001321303133 - 2⁵ = 2001321303101 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 (2001321304133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4440516 + ... + 4870402.

It is an arithmetic number, because the mean of its divisors is an integer number (128174546304).

Almost surely, 2^{2001321303133} is an apocalyptic number.

It is an amenable number.

2001321303133 is a deficient number, since it is larger than the sum of its proper divisors (49471437731).

2001321303133 is a wasteful number, since it uses less digits than its factorization.

2001321303133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430572.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 2001321303133 its reverse (3313031231002), we get a palindrome (5314352534135).

The spelling of 2001321303133 in words is "two trillion, one billion, three hundred twenty-one million, three hundred three thousand, one hundred thirty-three".