1123523361 has 9 divisors (see below), whose sum is σ = 1623012339. Its totient is φ = 748948536.

The previous prime is 1123523351. The next prime is 1123523381. The reversal of 1123523361 is 1633253211.

The square root of 1123523361 is 33519.

It is a perfect power (a square), and thus also a powerful number.

1123523361 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 526014225 + 597509136 = 22935^2 + 24444^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 1123523361 - 2⁵ = 1123523329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1123523321) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 94971 + ... + 106143.

Almost surely, 2^1123523361 is an apocalyptic number.

1123523361 is the 33519-th square number.

1123523361 is the 16760-th centered octagonal number.

It is an amenable number.

1123523361 is a deficient number, since it is larger than the sum of its proper divisors (499488978).

1123523361 is an frugal number, since it uses more digits than its factorization.

1123523361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22352 (or 11176 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The cubic root of 1123523361 is about 1039.5866703789.

Adding to 1123523361 its reverse (1633253211), we get a palindrome (2756776572).

It can be divided in two parts, 11235 and 23361, that added together give a square (34596 = 186²).

The spelling of 1123523361 in words is "one billion, one hundred twenty-three million, five hundred twenty-three thousand, three hundred sixty-one".