1220321323303 has 8 divisors (see below), whose sum is σ = 1232924166320. Its totient is φ = 1207718933760.

The previous prime is 1220321323289. The next prime is 1220321323373. The reversal of 1220321323303 is 3033231230221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220321323303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220321323373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9360853 + ... + 9490321.

It is an arithmetic number, because the mean of its divisors is an integer number (154115520790).

Almost surely, 2^{1220321323303} is an apocalyptic number.

1220321323303 is a deficient number, since it is larger than the sum of its proper divisors (12602843017).

1220321323303 is an equidigital number, since it uses as much as digits as its factorization.

1220321323303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226737.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 1220321323303 its reverse (3033231230221), we get a palindrome (4253552553524).

The spelling of 1220321323303 in words is "one trillion, two hundred twenty billion, three hundred twenty-one million, three hundred twenty-three thousand, three hundred three".