1123323403231 has 8 divisors (see below), whose sum is σ = 1128604321728. Its totient is φ = 1118054868000.

The previous prime is 1123323403219. The next prime is 1123323403261. The reversal of 1123323403231 is 1323043233211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123323403231 is a prime.

It is a super-2 number, since 2×1123323403231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1123323403231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123323403261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2913940 + ... + 3276841.

It is an arithmetic number, because the mean of its divisors is an integer number (141075540216).

Almost surely, 2^{1123323403231} is an apocalyptic number.

1123323403231 is a deficient number, since it is larger than the sum of its proper divisors (5280918497).

1123323403231 is an equidigital number, since it uses as much as digits as its factorization.

1123323403231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6191633.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 1123323403231 its reverse (1323043233211), we get a palindrome (2446366636442).

The spelling of 1123323403231 in words is "one trillion, one hundred twenty-three billion, three hundred twenty-three million, four hundred three thousand, two hundred thirty-one".