1123602320 has 20 divisors (see below), whose sum is σ = 2612375580. Its totient is φ = 449440896.

The previous prime is 1123602317. The next prime is 1123602323. The reversal of 1123602320 is 232063211.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1123602317) and next prime (1123602323).

It can be written as a sum of positive squares in 2 ways, for example, as 510940816 + 612661504 = 22604^2 + 24752^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1123602292 and 1123602301.

It is not an unprimeable number, because it can be changed into a prime (1123602323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7022435 + ... + 7022594.

It is an arithmetic number, because the mean of its divisors is an integer number (130618779).

Almost surely, 2^1123602320 is an apocalyptic number.

1123602320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123602320 is an abundant number, since it is smaller than the sum of its proper divisors (1488773260).

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

1123602320 is a wasteful number, since it uses less digits than its factorization.

1123602320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14045042 (or 14045036 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1123602320 is about 33520.1778038244. The cubic root of 1123602320 is about 1039.6110231736.

Adding to 1123602320 its reverse (232063211), we get a palindrome (1355665531).

The spelling of 1123602320 in words is "one billion, one hundred twenty-three million, six hundred two thousand, three hundred twenty".