11121321234689 has 2 divisors, whose sum is σ = 11121321234690. Its totient is φ = 11121321234688.

The previous prime is 11121321234637. The next prime is 11121321234701. The reversal of 11121321234689 is 98643212312111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9268706247025 + 1852614987664 = 3044455^2 + 1361108^2 .

It is a cyclic number.

It is not a de Polignac number, because 11121321234689 - 2⁸ = 11121321234433 is a prime.

It is not a weakly prime, because it can be changed into another prime (11121321234629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560660617344 + 5560660617345.

It is an arithmetic number, because the mean of its divisors is an integer number (5560660617345).

Almost surely, 2^{11121321234689} is an apocalyptic number.

It is an amenable number.

11121321234689 is a deficient number, since it is larger than the sum of its proper divisors (1).

11121321234689 is an equidigital number, since it uses as much as digits as its factorization.

11121321234689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 44.

The spelling of 11121321234689 in words is "eleven trillion, one hundred twenty-one billion, three hundred twenty-one million, two hundred thirty-four thousand, six hundred eighty-nine".