1131302223 has 6 divisors (see below), whose sum is σ = 1634103224. Its totient is φ = 754201476.

The previous prime is 1131302203. The next prime is 1131302231. The reversal of 1131302223 is 3222031311.

It is not a de Polignac number, because 1131302223 - 2⁵ = 1131302191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1131302196 and 1131302205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131302203) 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 5 ways as a sum of consecutive naturals, for example, 62850115 + ... + 62850132.

Almost surely, 2^1131302223 is an apocalyptic number.

1131302223 is a deficient number, since it is larger than the sum of its proper divisors (502801001).

1131302223 is a wasteful number, since it uses less digits than its factorization.

1131302223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125700253 (or 125700250 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1131302223 is about 33634.8364497287. The cubic root of 1131302223 is about 1041.9803928534.

Adding to 1131302223 its reverse (3222031311), we get a palindrome (4353333534).

The spelling of 1131302223 in words is "one billion, one hundred thirty-one million, three hundred two thousand, two hundred twenty-three".