27111013 has 4 divisors (see below), whose sum is σ = 27142668. Its totient is φ = 27079360.

The previous prime is 27111011. The next prime is 27111017. The reversal of 27111013 is 31011172.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3617604 + 23493409 = 1902^2 + 4847^2 .

It is a cyclic number.

It is not a de Polignac number, because 27111013 - 2¹ = 27111011 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 (27111011) 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, 14506 + ... + 16267.

It is an arithmetic number, because the mean of its divisors is an integer number (6785667).

Almost surely, 2^27111013 is an apocalyptic number.

It is an amenable number.

27111013 is a deficient number, since it is larger than the sum of its proper divisors (31655).

27111013 is an equidigital number, since it uses as much as digits as its factorization.

27111013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31654.

The product of its (nonzero) digits is 42, while the sum is 16.

The square root of 27111013 is about 5206.8236958822. The cubic root of 27111013 is about 300.4105970365.

Adding to 27111013 its reverse (31011172), we get a palindrome (58122185).

The spelling of 27111013 in words is "twenty-seven million, one hundred eleven thousand, thirteen".