1123311523 has 8 divisors (see below), whose sum is σ = 1145038320. Its totient is φ = 1101691680.

The previous prime is 1123311503. The next prime is 1123311557. The reversal of 1123311523 is 3251133211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1123311523 - 2¹³ = 1123303331 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1123311494 and 1123311503.

It is not an unprimeable number, because it can be changed into a prime (1123311503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5368 + ... + 47701.

It is an arithmetic number, because the mean of its divisors is an integer number (143129790).

Almost surely, 2^1123311523 is an apocalyptic number.

1123311523 is a deficient number, since it is larger than the sum of its proper divisors (21726797).

1123311523 is an equidigital number, since it uses as much as digits as its factorization.

1123311523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53477.

The product of its digits is 540, while the sum is 22.

The square root of 1123311523 is about 33515.8398820617. The cubic root of 1123311523 is about 1039.5213289684.

Adding to 1123311523 its reverse (3251133211), we get a palindrome (4374444734).

The spelling of 1123311523 in words is "one billion, one hundred twenty-three million, three hundred eleven thousand, five hundred twenty-three".