1131223363 has 2 divisors, whose sum is σ = 1131223364. Its totient is φ = 1131223362.

The previous prime is 1131223321. The next prime is 1131223381. The reversal of 1131223363 is 3633221311.

It is a strong prime.

It is an emirp because it is prime and its reverse (3633221311) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1131223363 is a prime.

It is not a weakly prime, because it can be changed into another prime (1131223663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565611681 + 565611682.

It is an arithmetic number, because the mean of its divisors is an integer number (565611682).

Almost surely, 2^1131223363 is an apocalyptic number.

1131223363 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131223363 is an equidigital number, since it uses as much as digits as its factorization.

1131223363 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 25.

The square root of 1131223363 is about 33633.6641328298. The cubic root of 1131223363 is about 1041.9561810847.

Adding to 1131223363 its reverse (3633221311), we get a palindrome (4764444674).

The spelling of 1131223363 in words is "one billion, one hundred thirty-one million, two hundred twenty-three thousand, three hundred sixty-three".