1123959973 has 2 divisors, whose sum is σ = 1123959974. Its totient is φ = 1123959972.

The previous prime is 1123959961. The next prime is 1123959979. The reversal of 1123959973 is 3799593211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1111688964 + 12271009 = 33342^2 + 3503^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123959973 - 2¹³ = 1123951781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123959979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561979986 + 561979987.

It is an arithmetic number, because the mean of its divisors is an integer number (561979987).

Almost surely, 2^1123959973 is an apocalyptic number.

It is an amenable number.

1123959973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123959973 is an equidigital number, since it uses as much as digits as its factorization.

1123959973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 459270, while the sum is 49.

The square root of 1123959973 is about 33525.5122705083. The cubic root of 1123959973 is about 1039.7213174032.

The spelling of 1123959973 in words is "one billion, one hundred twenty-three million, nine hundred fifty-nine thousand, nine hundred seventy-three".