1121121983 has 2 divisors, whose sum is σ = 1121121984. Its totient is φ = 1121121982.

The previous prime is 1121121979. The next prime is 1121122031. The reversal of 1121121983 is 3891211211.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (3891211211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1121121983 - 2² = 1121121979 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121121383) 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, 560560991 + 560560992.

It is an arithmetic number, because the mean of its divisors is an integer number (560560992).

Almost surely, 2^1121121983 is an apocalyptic number.

1121121983 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121121983 is an equidigital number, since it uses as much as digits as its factorization.

1121121983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 29.

The square root of 1121121983 is about 33483.1596925977. The cubic root of 1121121983 is about 1038.8454838101.

The spelling of 1121121983 in words is "one billion, one hundred twenty-one million, one hundred twenty-one thousand, nine hundred eighty-three".