1121344205231 has 2 divisors, whose sum is σ = 1121344205232. Its totient is φ = 1121344205230.

The previous prime is 1121344205209. The next prime is 1121344205249. The reversal of 1121344205231 is 1325024431211.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121344205231 - 2³⁴ = 1104164336047 is a prime.

It is a super-3 number, since 3×1121344205231³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121344205194 and 1121344205203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121344205251) 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, 560672102615 + 560672102616.

It is an arithmetic number, because the mean of its divisors is an integer number (560672102616).

Almost surely, 2^{1121344205231} is an apocalyptic number.

1121344205231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121344205231 is an equidigital number, since it uses as much as digits as its factorization.

1121344205231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 1121344205231 its reverse (1325024431211), we get a palindrome (2446368636442).

The spelling of 1121344205231 in words is "one trillion, one hundred twenty-one billion, three hundred forty-four million, two hundred five thousand, two hundred thirty-one".