1320220232 has 8 divisors (see below), whose sum is σ = 2475412950. Its totient is φ = 660110112.

The previous prime is 1320220229. The next prime is 1320220241. The reversal of 1320220232 is 2320220231.

It can be written as a sum of positive squares in only one way, i.e., 948270436 + 371949796 = 30794^2 + 19286^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1320220232.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82513757 + ... + 82513772.

Almost surely, 2^1320220232 is an apocalyptic number.

It is an amenable number.

1320220232 is a deficient number, since it is larger than the sum of its proper divisors (1155192718).

1320220232 is a wasteful number, since it uses less digits than its factorization.

1320220232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165027535 (or 165027531 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1320220232 is about 36334.8349659112. The cubic root of 1320220232 is about 1097.0223136555.

Adding to 1320220232 its reverse (2320220231), we get a palindrome (3640440463).

Subtracting 1320220232 from its reverse (2320220231), we obtain a palindrome (999999999).

The spelling of 1320220232 in words is "one billion, three hundred twenty million, two hundred twenty thousand, two hundred thirty-two".