2001111113 has 8 divisors (see below), whose sum is σ = 2116722048. Its totient is φ = 1887884064.

The previous prime is 2001111107. The next prime is 2001111121. The reversal of 2001111113 is 3111111002.

It is a happy number.

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 2001111113 - 2⁸ = 2001110857 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2001111094 and 2001111103.

It is not an unprimeable number, because it can be changed into a prime (2001116113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 594245 + ... + 597602.

It is an arithmetic number, because the mean of its divisors is an integer number (264590256).

Almost surely, 2^2001111113 is an apocalyptic number.

2001111113 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2001111113 is a deficient number, since it is larger than the sum of its proper divisors (115610935).

2001111113 is a wasteful number, since it uses less digits than its factorization.

2001111113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191943.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 2001111113 is about 44733.7804461014. The cubic root of 2001111113 is about 1260.1543258105.

Adding to 2001111113 its reverse (3111111002), we get a palindrome (5112222115).

The spelling of 2001111113 in words is "two billion, one million, one hundred eleven thousand, one hundred thirteen".