11771348213 has 8 divisors (see below), whose sum is σ = 11915849400. Its totient is φ = 11627720640.

The previous prime is 11771348203. The next prime is 11771348219. The reversal of 11771348213 is 31284317711.

11771348213 is digitally balanced in base 2, 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 1804720324 + 9966627889 = 42482^2 + 99833^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11771348213 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 (11771348219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191270 + ... + 245207.

It is an arithmetic number, because the mean of its divisors is an integer number (1489481175).

Almost surely, 2^11771348213 is an apocalyptic number.

It is an amenable number.

11771348213 is a deficient number, since it is larger than the sum of its proper divisors (144501187).

11771348213 is a wasteful number, since it uses less digits than its factorization.

11771348213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436807.

The product of its digits is 28224, while the sum is 38.

The spelling of 11771348213 in words is "eleven billion, seven hundred seventy-one million, three hundred forty-eight thousand, two hundred thirteen".