27031403213 has 4 divisors (see below), whose sum is σ = 27031841340. Its totient is φ = 27030965088.

The previous prime is 27031403207. The next prime is 27031403221. The reversal of 27031403213 is 31230413072.

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 9420255364 + 17611147849 = 97058^2 + 132707^2 .

It is a cyclic number.

It is not a de Polignac number, because 27031403213 - 2²⁶ = 26964294349 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 (27031403713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107618 + ... + 256211.

It is an arithmetic number, because the mean of its divisors is an integer number (6757960335).

Almost surely, 2^27031403213 is an apocalyptic number.

It is an amenable number.

27031403213 is a deficient number, since it is larger than the sum of its proper divisors (438127).

27031403213 is an equidigital number, since it uses as much as digits as its factorization.

27031403213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438126.

The product of its (nonzero) digits is 3024, while the sum is 26.

Adding to 27031403213 its reverse (31230413072), we get a palindrome (58261816285).

The spelling of 27031403213 in words is "twenty-seven billion, thirty-one million, four hundred three thousand, two hundred thirteen".