1123231130 has 16 divisors (see below), whose sum is σ = 2310647040. Its totient is φ = 385107792.

The previous prime is 1123231129. The next prime is 1123231139. The reversal of 1123231130 is 311323211.

It is a junction number, because it is equal to n+sod(n) for n = 1123231099 and 1123231108.

It is not an unprimeable number, because it can be changed into a prime (1123231139) 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, 8023010 + ... + 8023149.

It is an arithmetic number, because the mean of its divisors is an integer number (144415440).

Almost surely, 2^1123231130 is an apocalyptic number.

1123231130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1123231130 is an abundant number, since it is smaller than the sum of its proper divisors (1187415910).

1123231130 is a wasteful number, since it uses less digits than its factorization.

1123231130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16046173.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1123231130 is about 33514.6405321615. The cubic root of 1123231130 is about 1039.4965296050.

Adding to 1123231130 its reverse (311323211), we get a palindrome (1434554341).

The spelling of 1123231130 in words is "one billion, one hundred twenty-three million, two hundred thirty-one thousand, one hundred thirty".