1123032330 has 128 divisors (see below), whose sum is σ = 3464294400. Its totient is φ = 253564992.

The previous prime is 1123032329. The next prime is 1123032331. The reversal of 1123032330 is 332303211.

It is an interprime number because it is at equal distance from previous prime (1123032329) and next prime (1123032331).

It is a super-2 number, since 2×1123032330² = 2522403228450457800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1123032331) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 153291 + ... + 160449.

It is an arithmetic number, because the mean of its divisors is an integer number (27064800).

Almost surely, 2^1123032330 is an apocalyptic number.

1123032330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1123032330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1732147200).

1123032330 is an abundant number, since it is smaller than the sum of its proper divisors (2341262070).

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

1123032330 is a wasteful number, since it uses less digits than its factorization.

1123032330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7265 (or 7259 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 1123032330 is about 33511.6745329146. The cubic root of 1123032330 is about 1039.4351993654.

Adding to 1123032330 its reverse (332303211), we get a palindrome (1455335541).

The spelling of 1123032330 in words is "one billion, one hundred twenty-three million, thirty-two thousand, three hundred thirty".