1131324123 has 16 divisors (see below), whose sum is σ = 1527357600. Its totient is φ = 744775680.

The previous prime is 1131324101. The next prime is 1131324179. The reversal of 1131324123 is 3214231311.

It is not a de Polignac number, because 1131324123 - 2⁵ = 1131324091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1131324123.

It is not an unprimeable number, because it can be changed into a prime (1131322123) 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 15 ways as a sum of consecutive naturals, for example, 245763 + ... + 250323.

It is an arithmetic number, because the mean of its divisors is an integer number (95459850).

Almost surely, 2^1131324123 is an apocalyptic number.

1131324123 is a deficient number, since it is larger than the sum of its proper divisors (396033477).

1131324123 is an equidigital number, since it uses as much as digits as its factorization.

1131324123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5582.

The product of its digits is 432, while the sum is 21.

The square root of 1131324123 is about 33635.1620034749. The cubic root of 1131324123 is about 1041.9871164394.

Adding to 1131324123 its reverse (3214231311), we get a palindrome (4345555434).

The spelling of 1131324123 in words is "one billion, one hundred thirty-one million, three hundred twenty-four thousand, one hundred twenty-three".