1121119997 has 2 divisors, whose sum is σ = 1121119998. Its totient is φ = 1121119996.

The previous prime is 1121119969. The next prime is 1121120051. The reversal of 1121119997 is 7999111211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1048852996 + 72267001 = 32386^2 + 8501^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121119997 - 2¹⁸ = 1120857853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121119907) 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, 560559998 + 560559999.

It is an arithmetic number, because the mean of its divisors is an integer number (560559999).

Almost surely, 2^1121119997 is an apocalyptic number.

It is an amenable number.

1121119997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121119997 is an equidigital number, since it uses as much as digits as its factorization.

1121119997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10206, while the sum is 41.

The square root of 1121119997 is about 33483.1300358852. The cubic root of 1121119997 is about 1038.8448703924.

The spelling of 1121119997 in words is "one billion, one hundred twenty-one million, one hundred nineteen thousand, nine hundred ninety-seven".