11131311349 has 2 divisors, whose sum is σ = 11131311350. Its totient is φ = 11131311348.

The previous prime is 11131311307. The next prime is 11131311371. The reversal of 11131311349 is 94311313111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7400300625 + 3731010724 = 86025^2 + 61082^2 .

It is a cyclic number.

It is not a de Polignac number, because 11131311349 - 2¹⁹ = 11130787061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11131311749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5565655674 + 5565655675.

It is an arithmetic number, because the mean of its divisors is an integer number (5565655675).

Almost surely, 2^11131311349 is an apocalyptic number.

It is an amenable number.

11131311349 is a deficient number, since it is larger than the sum of its proper divisors (1).

11131311349 is an equidigital number, since it uses as much as digits as its factorization.

11131311349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 972, while the sum is 28.

The spelling of 11131311349 in words is "eleven billion, one hundred thirty-one million, three hundred eleven thousand, three hundred forty-nine".