1123432064 has 48 divisors (see below), whose sum is σ = 2312865810. Its totient is φ = 543536640.

The previous prime is 1123432049. The next prime is 1123432087. The reversal of 1123432064 is 4602343211.

It can be written as a sum of positive squares in only one way, i.e., 813390400 + 310041664 = 28520^2 + 17608^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 118442 + ... + 127574.

Almost surely, 2^1123432064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1123432064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1156432905).

1123432064 is an abundant number, since it is smaller than the sum of its proper divisors (1189433746).

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

1123432064 is an frugal number, since it uses more digits than its factorization.

1123432064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9209 (or 9166 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 1123432064 is about 33517.6381029451. The cubic root of 1123432064 is about 1039.5585108353.

Adding to 1123432064 its reverse (4602343211), we get a palindrome (5725775275).

The spelling of 1123432064 in words is "one billion, one hundred twenty-three million, four hundred thirty-two thousand, sixty-four".