11250121049 has 2 divisors, whose sum is σ = 11250121050. Its totient is φ = 11250121048.

The previous prime is 11250121033. The next prime is 11250121067. The reversal of 11250121049 is 94012105211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9770334025 + 1479787024 = 98845^2 + 38468^2 .

It is a cyclic number.

It is not a de Polignac number, because 11250121049 - 2⁴ = 11250121033 is a prime.

It is not a weakly prime, because it can be changed into another prime (11250124049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5625060524 + 5625060525.

It is an arithmetic number, because the mean of its divisors is an integer number (5625060525).

Almost surely, 2^11250121049 is an apocalyptic number.

It is an amenable number.

11250121049 is a deficient number, since it is larger than the sum of its proper divisors (1).

11250121049 is an equidigital number, since it uses as much as digits as its factorization.

11250121049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 26.

The spelling of 11250121049 in words is "eleven billion, two hundred fifty million, one hundred twenty-one thousand, forty-nine".