1123423030 has 16 divisors (see below), whose sum is σ = 2022549984. Its totient is φ = 449282880.

The previous prime is 1123423027. The next prime is 1123423069. The reversal of 1123423030 is 303243211.

It is a junction number, because it is equal to n+sod(n) for n = 1123422989 and 1123423007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81199 + ... + 94021.

It is an arithmetic number, because the mean of its divisors is an integer number (126409374).

Almost surely, 2^1123423030 is an apocalyptic number.

1123423030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1123423030 is a deficient number, since it is larger than the sum of its proper divisors (899126954).

1123423030 is a wasteful number, since it uses less digits than its factorization.

1123423030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21591.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1123423030 is about 33517.5033378084. The cubic root of 1123423030 is about 1039.5557243156. Note that the first 3 decimals are identical.

Adding to 1123423030 its reverse (303243211), we get a palindrome (1426666241).

The spelling of 1123423030 in words is "one billion, one hundred twenty-three million, four hundred twenty-three thousand, thirty".