1121115256117 has 2 divisors, whose sum is σ = 1121115256118. Its totient is φ = 1121115256116.

The previous prime is 1121115256103. The next prime is 1121115256189. The reversal of 1121115256117 is 7116525111211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 703125852676 + 417989403441 = 838526^2 + 646521^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121115256117 - 2¹¹ = 1121115254069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121115256817) 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, 560557628058 + 560557628059.

It is an arithmetic number, because the mean of its divisors is an integer number (560557628059).

Almost surely, 2^{1121115256117} is an apocalyptic number.

It is an amenable number.

1121115256117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121115256117 is an equidigital number, since it uses as much as digits as its factorization.

1121115256117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4200, while the sum is 34.

The spelling of 1121115256117 in words is "one trillion, one hundred twenty-one billion, one hundred fifteen million, two hundred fifty-six thousand, one hundred seventeen".