1123433449 has 2 divisors, whose sum is σ = 1123433450. Its totient is φ = 1123433448.

The previous prime is 1123433417. The next prime is 1123433477. The reversal of 1123433449 is 9443343211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 859955625 + 263477824 = 29325^2 + 16232^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123433449 - 2⁵ = 1123433417 is a prime.

It is not a weakly prime, because it can be changed into another prime (1123433249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561716724 + 561716725.

It is an arithmetic number, because the mean of its divisors is an integer number (561716725).

Almost surely, 2^1123433449 is an apocalyptic number.

It is an amenable number.

1123433449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123433449 is an equidigital number, since it uses as much as digits as its factorization.

1123433449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 34.

The square root of 1123433449 is about 33517.6587637025. The cubic root of 1123433449 is about 1039.5589380346.

The spelling of 1123433449 in words is "one billion, one hundred twenty-three million, four hundred thirty-three thousand, four hundred forty-nine".