1123232401 has 4 divisors (see below), whose sum is σ = 1129052452. Its totient is φ = 1117412352.

The previous prime is 1123232359. The next prime is 1123232417. The reversal of 1123232401 is 1042323211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1042323211 = 1361 ⋅765851.

It can be written as a sum of positive squares in 2 ways, for example, as 625050001 + 498182400 = 25001^2 + 22320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123232401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123232441) 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, 2909736 + ... + 2910121.

It is an arithmetic number, because the mean of its divisors is an integer number (282263113).

Almost surely, 2^1123232401 is an apocalyptic number.

It is an amenable number.

1123232401 is a deficient number, since it is larger than the sum of its proper divisors (5820051).

1123232401 is an equidigital number, since it uses as much as digits as its factorization.

1123232401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5820050.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1123232401 is about 33514.6594940184. The cubic root of 1123232401 is about 1039.4969216881.

Adding to 1123232401 its reverse (1042323211), we get a palindrome (2165555612).

The spelling of 1123232401 in words is "one billion, one hundred twenty-three million, two hundred thirty-two thousand, four hundred one".