2011355413 has 4 divisors (see below), whose sum is σ = 2020375168. Its totient is φ = 2002335660.

The previous prime is 2011355399. The next prime is 2011355443. The reversal of 2011355413 is 3145531102.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-2011355413 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 (2011355443) 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, 4509543 + ... + 4509988.

It is an arithmetic number, because the mean of its divisors is an integer number (505093792).

Almost surely, 2^2011355413 is an apocalyptic number.

It is an amenable number.

2011355413 is a deficient number, since it is larger than the sum of its proper divisors (9019755).

2011355413 is an equidigital number, since it uses as much as digits as its factorization.

2011355413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9019754.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 2011355413 is about 44848.1372299898. The cubic root of 2011355413 is about 1262.3010385810.

Adding to 2011355413 its reverse (3145531102), we get a palindrome (5156886515).

The spelling of 2011355413 in words is "two billion, eleven million, three hundred fifty-five thousand, four hundred thirteen".