1320004121223 has 16 divisors (see below), whose sum is σ = 1895721956480. Its totient is φ = 814298746464.

The previous prime is 1320004121221. The next prime is 1320004121237. The reversal of 1320004121223 is 3221214000231.

It is not a de Polignac number, because 1320004121223 - 2¹ = 1320004121221 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 1320004121223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320004121221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269276236 + ... + 269281137.

It is an arithmetic number, because the mean of its divisors is an integer number (118482622280).

Almost surely, 2^{1320004121223} is an apocalyptic number.

1320004121223 is a deficient number, since it is larger than the sum of its proper divisors (575717835257).

1320004121223 is a wasteful number, since it uses less digits than its factorization.

1320004121223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538557438.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1320004121223 its reverse (3221214000231), we get a palindrome (4541218121454).

The spelling of 1320004121223 in words is "one trillion, three hundred twenty billion, four million, one hundred twenty-one thousand, two hundred twenty-three".