1121123113013 has 2 divisors, whose sum is σ = 1121123113014. Its totient is φ = 1121123113012.

The previous prime is 1121123113003. The next prime is 1121123113031. The reversal of 1121123113013 is 3103113211211.

Together with next prime (1121123113031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 860883354244 + 260239758769 = 927838^2 + 510137^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121123113013 - 2¹⁰ = 1121123111989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121123113003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560561556506 + 560561556507.

It is an arithmetic number, because the mean of its divisors is an integer number (560561556507).

Almost surely, 2^{1121123113013} is an apocalyptic number.

It is an amenable number.

1121123113013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121123113013 is an equidigital number, since it uses as much as digits as its factorization.

1121123113013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 1121123113013 its reverse (3103113211211), we get a palindrome (4224236324224).

The spelling of 1121123113013 in words is "one trillion, one hundred twenty-one billion, one hundred twenty-three million, one hundred thirteen thousand, thirteen".