1230111232 has 80 divisors (see below), whose sum is σ = 2828783232. Its totient is φ = 523468800.

The previous prime is 1230111203. The next prime is 1230111257. The reversal of 1230111232 is 2321110321.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 540048 + ... + 542320.

Almost surely, 2^1230111232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1230111232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1414391616).

1230111232 is an abundant number, since it is smaller than the sum of its proper divisors (1598672000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1230111232 is an equidigital number, since it uses as much as digits as its factorization.

1230111232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2449 (or 2433 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1230111232 is about 35072.9415931997. The cubic root of 1230111232 is about 1071.4735664287.

Adding to 1230111232 its reverse (2321110321), we get a palindrome (3551221553).

The spelling of 1230111232 in words is "one billion, two hundred thirty million, one hundred eleven thousand, two hundred thirty-two".