1123355680 has 48 divisors (see below), whose sum is σ = 2739550464. Its totient is φ = 434845440.

The previous prime is 1123355671. The next prime is 1123355729. The reversal of 1123355680 is 865533211.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108282 + ... + 118201.

It is an arithmetic number, because the mean of its divisors is an integer number (57073968).

Almost surely, 2^1123355680 is an apocalyptic number.

1123355680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123355680 is an abundant number, since it is smaller than the sum of its proper divisors (1616194784).

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

1123355680 is a wasteful number, since it uses less digits than its factorization.

1123355680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226529 (or 226521 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 1123355680 is about 33516.4986238121. The cubic root of 1123355680 is about 1039.5349498684.

Adding to 1123355680 its reverse (865533211), we get a palindrome (1988888891).

The spelling of 1123355680 in words is "one billion, one hundred twenty-three million, three hundred fifty-five thousand, six hundred eighty".