1123440330 has 16 divisors (see below), whose sum is σ = 2696256864. Its totient is φ = 299584080.

The previous prime is 1123440319. The next prime is 1123440343. The reversal of 1123440330 is 330443211.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1123440297 and 1123440306.

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, 18723976 + ... + 18724035.

It is an arithmetic number, because the mean of its divisors is an integer number (168516054).

Almost surely, 2^1123440330 is an apocalyptic number.

1123440330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1123440330 is an abundant number, since it is smaller than the sum of its proper divisors (1572816534).

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

1123440330 is a wasteful number, since it uses less digits than its factorization.

1123440330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37448021.

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

The square root of 1123440330 is about 33517.7614109296. The cubic root of 1123440330 is about 1039.5610604538.

Adding to 1123440330 its reverse (330443211), we get a palindrome (1453883541).

The spelling of 1123440330 in words is "one billion, one hundred twenty-three million, four hundred forty thousand, three hundred thirty".