1121312310361 has 2 divisors, whose sum is σ = 1121312310362. Its totient is φ = 1121312310360.

The previous prime is 1121312310359. The next prime is 1121312310379. The reversal of 1121312310361 is 1630132131211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1037831187600 + 83481122761 = 1018740^2 + 288931^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121312310361 - 2¹ = 1121312310359 is a prime.

Together with 1121312310359, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1121312310661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560656155180 + 560656155181.

It is an arithmetic number, because the mean of its divisors is an integer number (560656155181).

Almost surely, 2^{1121312310361} is an apocalyptic number.

It is an amenable number.

1121312310361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121312310361 is an equidigital number, since it uses as much as digits as its factorization.

1121312310361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 1121312310361 its reverse (1630132131211), we get a palindrome (2751444441572).

The spelling of 1121312310361 in words is "one trillion, one hundred twenty-one billion, three hundred twelve million, three hundred ten thousand, three hundred sixty-one".