1123230247 has 2 divisors, whose sum is σ = 1123230248. Its totient is φ = 1123230246.

The previous prime is 1123230211. The next prime is 1123230263. The reversal of 1123230247 is 7420323211.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123230247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123233247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561615123 + 561615124.

It is an arithmetic number, because the mean of its divisors is an integer number (561615124).

Almost surely, 2^1123230247 is an apocalyptic number.

1123230247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123230247 is an equidigital number, since it uses as much as digits as its factorization.

1123230247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 1123230247 is about 33514.6273588116. The cubic root of 1123230247 is about 1039.4962572136.

Adding to 1123230247 its reverse (7420323211), we get a palindrome (8543553458).

The spelling of 1123230247 in words is "one billion, one hundred twenty-three million, two hundred thirty thousand, two hundred forty-seven".