11311553213 has 2 divisors, whose sum is σ = 11311553214. Its totient is φ = 11311553212.

The previous prime is 11311553207. The next prime is 11311553291. The reversal of 11311553213 is 31235511311.

It is a happy number.

11311553213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5746094809 + 5565458404 = 75803^2 + 74602^2 .

It is an emirp because it is prime and its reverse (31235511311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11311553213 - 2⁸ = 11311552957 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11311553713) 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 as a sum of consecutive naturals, namely, 5655776606 + 5655776607.

It is an arithmetic number, because the mean of its divisors is an integer number (5655776607).

Almost surely, 2^11311553213 is an apocalyptic number.

It is an amenable number.

11311553213 is a deficient number, since it is larger than the sum of its proper divisors (1).

11311553213 is an equidigital number, since it uses as much as digits as its factorization.

11311553213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1350, while the sum is 26.

The spelling of 11311553213 in words is "eleven billion, three hundred eleven million, five hundred fifty-three thousand, two hundred thirteen".