1131141323 has 4 divisors (see below), whose sum is σ = 1218152208. Its totient is φ = 1044130440.

The previous prime is 1131141301. The next prime is 1131141329. The reversal of 1131141323 is 3231411311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3231411311 = 36871 ⋅87641.

It is a cyclic number.

It is not a de Polignac number, because 1131141323 - 2¹⁶ = 1131075787 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1131141295 and 1131141304.

It is not an unprimeable number, because it can be changed into a prime (1131141329) 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 3 ways as a sum of consecutive naturals, for example, 43505423 + ... + 43505448.

It is an arithmetic number, because the mean of its divisors is an integer number (304538052).

Almost surely, 2^1131141323 is an apocalyptic number.

1131141323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1131141323 is a deficient number, since it is larger than the sum of its proper divisors (87010885).

1131141323 is an equidigital number, since it uses as much as digits as its factorization.

1131141323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87010884.

The product of its digits is 216, while the sum is 20.

The square root of 1131141323 is about 33632.4444993224. Note that the first 4 decimals coincide. The cubic root of 1131141323 is about 1041.9309917913.

Adding to 1131141323 its reverse (3231411311), we get a palindrome (4362552634).

The spelling of 1131141323 in words is "one billion, one hundred thirty-one million, one hundred forty-one thousand, three hundred twenty-three".