1121343211931 has 2 divisors, whose sum is σ = 1121343211932. Its totient is φ = 1121343211930.

The previous prime is 1121343211921. The next prime is 1121343212051. The reversal of 1121343211931 is 1391123431211.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121343211931 is a prime.

It is a super-2 number, since 2×1121343211931² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1121343211921) 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, 560671605965 + 560671605966.

It is an arithmetic number, because the mean of its divisors is an integer number (560671605966).

Almost surely, 2^{1121343211931} is an apocalyptic number.

1121343211931 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121343211931 is an equidigital number, since it uses as much as digits as its factorization.

1121343211931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 32.

The spelling of 1121343211931 in words is "one trillion, one hundred twenty-one billion, three hundred forty-three million, two hundred eleven thousand, nine hundred thirty-one".