11211111001049 has 2 divisors, whose sum is σ = 11211111001050. Its totient is φ = 11211111001048.

The previous prime is 11211111000967. The next prime is 11211111001177. The reversal of 11211111001049 is 94010011111211.

It is a happy number.

11211111001049 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., 9958871669824 + 1252239331225 = 3155768^2 + 1119035^2 .

It is a cyclic number.

It is not a de Polignac number, because 11211111001049 - 2⁴⁰ = 10111599373273 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11211111001249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605555500524 + 5605555500525.

It is an arithmetic number, because the mean of its divisors is an integer number (5605555500525).

Almost surely, 2^{11211111001049} is an apocalyptic number.

It is an amenable number.

11211111001049 is a deficient number, since it is larger than the sum of its proper divisors (1).

11211111001049 is an equidigital number, since it uses as much as digits as its factorization.

11211111001049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 23.

The spelling of 11211111001049 in words is "eleven trillion, two hundred eleven billion, one hundred eleven million, one thousand, forty-nine".