2001313111 has 8 divisors (see below), whose sum is σ = 2407594880. Its totient is φ = 1625126328.

The previous prime is 2001313103. The next prime is 2001313121. The reversal of 2001313111 is 1113131002.

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

It is not a de Polignac number, because 2001313111 - 2³ = 2001313103 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2001313091 and 2001313100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001313121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7523601 + ... + 7523866.

It is an arithmetic number, because the mean of its divisors is an integer number (300949360).

Almost surely, 2^2001313111 is an apocalyptic number.

2001313111 is a deficient number, since it is larger than the sum of its proper divisors (406281769).

2001313111 is a wasteful number, since it uses less digits than its factorization.

2001313111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15047493.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 2001313111 is about 44736.0381683492. The cubic root of 2001313111 is about 1260.1967256032.

Adding to 2001313111 its reverse (1113131002), we get a palindrome (3114444113).

It can be divided in two parts, 20013 and 13111, that added together give a square (33124 = 182²).

The spelling of 2001313111 in words is "two billion, one million, three hundred thirteen thousand, one hundred eleven".