1123221030 has 32 divisors (see below), whose sum is σ = 2697235200. Its totient is φ = 299358432.

The previous prime is 1123221023. The next prime is 1123221037. The reversal of 1123221030 is 301223211.

It is an interprime number because it is at equal distance from previous prime (1123221023) and next prime (1123221037).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123221037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49911 + ... + 68829.

It is an arithmetic number, because the mean of its divisors is an integer number (84288600).

Almost surely, 2^1123221030 is an apocalyptic number.

1123221030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1123221030 is an abundant number, since it is smaller than the sum of its proper divisors (1574014170).

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

1123221030 is a wasteful number, since it uses less digits than its factorization.

1123221030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20908.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1123221030 is about 33514.4898514061. The cubic root of 1123221030 is about 1039.4934139072.

Adding to 1123221030 its reverse (301223211), we get a palindrome (1424444241).

The spelling of 1123221030 in words is "one billion, one hundred twenty-three million, two hundred twenty-one thousand, thirty".