11211011497913 has 2 divisors, whose sum is σ = 11211011497914. Its totient is φ = 11211011497912.

The previous prime is 11211011497897. The next prime is 11211011497949. The reversal of 11211011497913 is 31979411011211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9978194333584 + 1232817164329 = 3158828^2 + 1110323^2 .

It is a cyclic number.

It is not a de Polignac number, because 11211011497913 - 2⁴ = 11211011497897 is a prime.

It is not a weakly prime, because it can be changed into another prime (11211011497993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605505748956 + 5605505748957.

It is an arithmetic number, because the mean of its divisors is an integer number (5605505748957).

Almost surely, 2^{11211011497913} is an apocalyptic number.

It is an amenable number.

11211011497913 is a deficient number, since it is larger than the sum of its proper divisors (1).

11211011497913 is an equidigital number, since it uses as much as digits as its factorization.

11211011497913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 41.

The spelling of 11211011497913 in words is "eleven trillion, two hundred eleven billion, eleven million, four hundred ninety-seven thousand, nine hundred thirteen".