11571013 has 8 divisors (see below), whose sum is σ = 11852568. Its totient is φ = 11291904.

The previous prime is 11570989. The next prime is 11571017. The reversal of 11571013 is 31017511.

11571013 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 58564 + 11512449 = 242^2 + 3393^2 .

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 11571013 - 2⁹ = 11570501 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 (11571017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11881 + ... + 12817.

It is an arithmetic number, because the mean of its divisors is an integer number (1481571).

Almost surely, 2^11571013 is an apocalyptic number.

It is an amenable number.

11571013 is a deficient number, since it is larger than the sum of its proper divisors (281555).

11571013 is an equidigital number, since it uses as much as digits as its factorization.

11571013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223.

The product of its (nonzero) digits is 105, while the sum is 19.

The square root of 11571013 is about 3401.6191732762. The cubic root of 11571013 is about 226.1815246111.

Adding to 11571013 its reverse (31017511), we get a palindrome (42588524).

The spelling of 11571013 in words is "eleven million, five hundred seventy-one thousand, thirteen".