1131304223 has 8 divisors (see below), whose sum is σ = 1293816960. Its totient is φ = 969015960.

The previous prime is 1131304183. The next prime is 1131304249. The reversal of 1131304223 is 3224031311.

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 1131304223 - 2²⁰ = 1130255647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1131304195 and 1131304204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131304283) 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, 45173 + ... + 65598.

It is an arithmetic number, because the mean of its divisors is an integer number (161727120).

Almost surely, 2^1131304223 is an apocalyptic number.

1131304223 is a deficient number, since it is larger than the sum of its proper divisors (162512737).

1131304223 is a wasteful number, since it uses less digits than its factorization.

1131304223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112237.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1131304223 is about 33634.8661807952. The cubic root of 1131304223 is about 1041.9810068831.

Adding to 1131304223 its reverse (3224031311), we get a palindrome (4355335534).

The spelling of 1131304223 in words is "one billion, one hundred thirty-one million, three hundred four thousand, two hundred twenty-three".