1123443130 has 16 divisors (see below), whose sum is σ = 2141150760. Its totient is φ = 422943232.

The previous prime is 1123443103. The next prime is 1123443133. The reversal of 1123443130 is 313443211.

It can be written as a sum of positive squares in 4 ways, for example, as 1035101929 + 88341201 = 32173^2 + 9399^2 .

It is not an unprimeable number, because it can be changed into a prime (1123443133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3304075 + ... + 3304414.

Almost surely, 2^1123443130 is an apocalyptic number.

1123443130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1123443130 is a deficient number, since it is larger than the sum of its proper divisors (1017707630).

1123443130 is a wasteful number, since it uses less digits than its factorization.

1123443130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6608513.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1123443130 is about 33517.8031798028. The cubic root of 1123443130 is about 1039.5619241011.

Adding to 1123443130 its reverse (313443211), we get a palindrome (1436886341).

The spelling of 1123443130 in words is "one billion, one hundred twenty-three million, four hundred forty-three thousand, one hundred thirty".