1123034389 has 2 divisors, whose sum is σ = 1123034390. Its totient is φ = 1123034388.

The previous prime is 1123034371. The next prime is 1123034413. The reversal of 1123034389 is 9834303211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1121915025 + 1119364 = 33495^2 + 1058^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123034389 - 2⁵ = 1123034357 is a prime.

It is a super-2 number, since 2×1123034389² = 2522412477753206642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123034329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561517194 + 561517195.

It is an arithmetic number, because the mean of its divisors is an integer number (561517195).

Almost surely, 2^1123034389 is an apocalyptic number.

It is an amenable number.

1123034389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123034389 is an equidigital number, since it uses as much as digits as its factorization.

1123034389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 1123034389 is about 33511.7052535379. The cubic root of 1123034389 is about 1039.4358346086.

The spelling of 1123034389 in words is "one billion, one hundred twenty-three million, thirty-four thousand, three hundred eighty-nine".