2001311023313 has 8 divisors (see below), whose sum is σ = 2287224558528. Its totient is φ = 1715400478224.

The previous prime is 2001311023277. The next prime is 2001311023343. The reversal of 2001311023313 is 3133201131002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2001311023313 - 2¹⁸ = 2001310761169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2001311023343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 940970 + ... + 2210892.

It is an arithmetic number, because the mean of its divisors is an integer number (285903069816).

Almost surely, 2^{2001311023313} is an apocalyptic number.

It is an amenable number.

2001311023313 is a deficient number, since it is larger than the sum of its proper divisors (285913535215).

2001311023313 is a wasteful number, since it uses less digits than its factorization.

2001311023313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495063.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 2001311023313 its reverse (3133201131002), we get a palindrome (5134512154315).

The spelling of 2001311023313 in words is "two trillion, one billion, three hundred eleven million, twenty-three thousand, three hundred thirteen".