1123443030 has 16 divisors (see below), whose sum is σ = 2696263344. Its totient is φ = 299584800.

The previous prime is 1123443029. The next prime is 1123443037. The reversal of 1123443030 is 303443211.

It is a junction number, because it is equal to n+sod(n) for n = 1123442988 and 1123443006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123443037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18724021 + ... + 18724080.

It is an arithmetic number, because the mean of its divisors is an integer number (168516459).

Almost surely, 2^1123443030 is an apocalyptic number.

1123443030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1123443030 is an abundant number, since it is smaller than the sum of its proper divisors (1572820314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123443030 is a wasteful number, since it uses less digits than its factorization.

1123443030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37448111.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1123443030 is about 33517.8016880582. The cubic root of 1123443030 is about 1039.5618932566.

Adding to 1123443030 its reverse (303443211), we get a palindrome (1426886241).

It can be divided in two parts, 1123 and 443030, that added together give a triangular number (444153 = T₉₄₂).

The spelling of 1123443030 in words is "one billion, one hundred twenty-three million, four hundred forty-three thousand, thirty".