11211178393 has 2 divisors, whose sum is σ = 11211178394. Its totient is φ = 11211178392.

The previous prime is 11211178337. The next prime is 11211178421. The reversal of 11211178393 is 39387111211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10947018384 + 264160009 = 104628^2 + 16253^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11211178393 is a prime.

It is not a weakly prime, because it can be changed into another prime (11211178313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605589196 + 5605589197.

It is an arithmetic number, because the mean of its divisors is an integer number (5605589197).

Almost surely, 2^11211178393 is an apocalyptic number.

It is an amenable number.

11211178393 is a deficient number, since it is larger than the sum of its proper divisors (1).

11211178393 is an equidigital number, since it uses as much as digits as its factorization.

11211178393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 37.

The spelling of 11211178393 in words is "eleven billion, two hundred eleven million, one hundred seventy-eight thousand, three hundred ninety-three".