1120122989 has 2 divisors, whose sum is σ = 1120122990. Its totient is φ = 1120122988.

The previous prime is 1120122943. The next prime is 1120123003. The reversal of 1120122989 is 9892210211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1118367364 + 1755625 = 33442^2 + 1325^2 .

It is a cyclic number.

It is not a de Polignac number, because 1120122989 - 2¹⁶ = 1120057453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1120122919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560061494 + 560061495.

It is an arithmetic number, because the mean of its divisors is an integer number (560061495).

Almost surely, 2^1120122989 is an apocalyptic number.

It is an amenable number.

1120122989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120122989 is an equidigital number, since it uses as much as digits as its factorization.

1120122989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 35.

The square root of 1120122989 is about 33468.2385105640. The cubic root of 1120122989 is about 1038.5368320537.

The spelling of 1120122989 in words is "one billion, one hundred twenty million, one hundred twenty-two thousand, nine hundred eighty-nine".