1121031310313 has 2 divisors, whose sum is σ = 1121031310314. Its totient is φ = 1121031310312.

The previous prime is 1121031310303. The next prime is 1121031310339. The reversal of 1121031310313 is 3130131301211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 938114284969 + 182917025344 = 968563^2 + 427688^2 .

It is an emirp because it is prime and its reverse (3130131301211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1121031310313 - 2⁸ = 1121031310057 is a prime.

It is a super-2 number, since 2×1121031310313² (a number of 25 digits) contains 22 as substring.

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 (1121031310303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560515655156 + 560515655157.

It is an arithmetic number, because the mean of its divisors is an integer number (560515655157).

Almost surely, 2^{1121031310313} is an apocalyptic number.

It is an amenable number.

1121031310313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121031310313 is an equidigital number, since it uses as much as digits as its factorization.

1121031310313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 1121031310313 its reverse (3130131301211), we get a palindrome (4251162611524).

The spelling of 1121031310313 in words is "one trillion, one hundred twenty-one billion, thirty-one million, three hundred ten thousand, three hundred thirteen".