1223143232 has 28 divisors (see below), whose sum is σ = 2434871940. Its totient is φ = 609632256.

The previous prime is 1223143193. The next prime is 1223143247. The reversal of 1223143232 is 2323413221.

It can be written as a sum of positive squares in 2 ways, for example, as 29855296 + 1193287936 = 5464^2 + 34544^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1223143198 and 1223143207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9857 + ... + 50432.

Almost surely, 2^1223143232 is an apocalyptic number.

It is an amenable number.

1223143232 is a deficient number, since it is larger than the sum of its proper divisors (1211728708).

1223143232 is an equidigital number, since it uses as much as digits as its factorization.

1223143232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60618 (or 60608 counting only the distinct ones).

The product of its digits is 1728, while the sum is 23.

The square root of 1223143232 is about 34973.4646839572. The cubic root of 1223143232 is about 1069.4466035213.

Adding to 1223143232 its reverse (2323413221), we get a palindrome (3546556453).

The spelling of 1223143232 in words is "one billion, two hundred twenty-three million, one hundred forty-three thousand, two hundred thirty-two".