2011103313 has 4 divisors (see below), whose sum is σ = 2681471088. Its totient is φ = 1340735540.

The previous prime is 2011103309. The next prime is 2011103321. The reversal of 2011103313 is 3133011102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2011103313 - 2² = 2011103309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2011103292 and 2011103301.

It is not an unprimeable number, because it can be changed into a prime (2011103333) 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, 335183883 + ... + 335183888.

It is an arithmetic number, because the mean of its divisors is an integer number (670367772).

Almost surely, 2^2011103313 is an apocalyptic number.

It is an amenable number.

2011103313 is a deficient number, since it is larger than the sum of its proper divisors (670367775).

2011103313 is an equidigital number, since it uses as much as digits as its factorization.

2011103313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670367774.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 2011103313 is about 44845.3265458063. The cubic root of 2011103313 is about 1262.2482981278.

Adding to 2011103313 its reverse (3133011102), we get a palindrome (5144114415).

The spelling of 2011103313 in words is "two billion, eleven million, one hundred three thousand, three hundred thirteen".