1123422889 has 2 divisors, whose sum is σ = 1123422890. Its totient is φ = 1123422888.

The previous prime is 1123422871. The next prime is 1123422893. The reversal of 1123422889 is 9882243211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1122250000 + 1172889 = 33500^2 + 1083^2 .

It is an emirp because it is prime and its reverse (9882243211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1123422889 - 2⁷ = 1123422761 is a prime.

It is not a weakly prime, because it can be changed into another prime (1123422809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561711444 + 561711445.

It is an arithmetic number, because the mean of its divisors is an integer number (561711445).

Almost surely, 2^1123422889 is an apocalyptic number.

It is an amenable number.

1123422889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123422889 is an equidigital number, since it uses as much as digits as its factorization.

1123422889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 40.

The square root of 1123422889 is about 33517.5012344298. The cubic root of 1123422889 is about 1039.5556808243. Note that the first 3 decimals are identical.

The spelling of 1123422889 in words is "one billion, one hundred twenty-three million, four hundred twenty-two thousand, eight hundred eighty-nine".