1220532303 has 4 divisors (see below), whose sum is σ = 1627376408. Its totient is φ = 813688200.

The previous prime is 1220532199. The next prime is 1220532307. The reversal of 1220532303 is 3032350221.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1220532303 - 2⁹ = 1220531791 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1220532303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220532307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203422048 + ... + 203422053.

It is an arithmetic number, because the mean of its divisors is an integer number (406844102).

Almost surely, 2^1220532303 is an apocalyptic number.

1220532303 is a deficient number, since it is larger than the sum of its proper divisors (406844105).

1220532303 is an equidigital number, since it uses as much as digits as its factorization.

1220532303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406844104.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 1220532303 is about 34936.1174574394. The cubic root of 1220532303 is about 1068.6851123561.

Adding to 1220532303 its reverse (3032350221), we get a palindrome (4252882524).

The spelling of 1220532303 in words is "one billion, two hundred twenty million, five hundred thirty-two thousand, three hundred three".