1121333202991 has 2 divisors, whose sum is σ = 1121333202992. Its totient is φ = 1121333202990.

The previous prime is 1121333202967. The next prime is 1121333203037. The reversal of 1121333202991 is 1992023331211.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121333202991 is a prime.

It is a super-2 number, since 2×1121333202991² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1121333202991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121333202091) 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, 560666601495 + 560666601496.

It is an arithmetic number, because the mean of its divisors is an integer number (560666601496).

Almost surely, 2^{1121333202991} is an apocalyptic number.

1121333202991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121333202991 is an equidigital number, since it uses as much as digits as its factorization.

1121333202991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 37.

The spelling of 1121333202991 in words is "one trillion, one hundred twenty-one billion, three hundred thirty-three million, two hundred two thousand, nine hundred ninety-one".