1123345580 has 48 divisors (see below), whose sum is σ = 2751067200. Its totient is φ = 385144704.

The previous prime is 1123345513. The next prime is 1123345583. The reversal of 1123345580 is 855433211.

It is not an unprimeable number, because it can be changed into a prime (1123345583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75017 + ... + 88736.

It is an arithmetic number, because the mean of its divisors is an integer number (57313900).

Almost surely, 2^1123345580 is an apocalyptic number.

1123345580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123345580 is an abundant number, since it is smaller than the sum of its proper divisors (1627721620).

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

1123345580 is a wasteful number, since it uses less digits than its factorization.

1123345580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163783 (or 163767 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 1123345580 is about 33516.3479514102. The cubic root of 1123345580 is about 1039.5318344009.

Adding to 1123345580 its reverse (855433211), we get a palindrome (1978778791).

The spelling of 1123345580 in words is "one billion, one hundred twenty-three million, three hundred forty-five thousand, five hundred eighty".