1223203432 has 64 divisors (see below), whose sum is σ = 2643379200. Its totient is φ = 524802240.

The previous prime is 1223203427. The next prime is 1223203433. The reversal of 1223203432 is 2343023221.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (1223203433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 512113 + ... + 514495.

It is an arithmetic number, because the mean of its divisors is an integer number (41302800).

Almost surely, 2^1223203432 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 1223203432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1321689600).

1223203432 is an abundant number, since it is smaller than the sum of its proper divisors (1420175768).

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

1223203432 is a wasteful number, since it uses less digits than its factorization.

1223203432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2726 (or 2722 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 1223203432 is about 34974.3253258730. The cubic root of 1223203432 is about 1069.4641483810.

Adding to 1223203432 its reverse (2343023221), we get a palindrome (3566226653).

The spelling of 1223203432 in words is "one billion, two hundred twenty-three million, two hundred three thousand, four hundred thirty-two".