1320321223231 has 8 divisors (see below), whose sum is σ = 1362960720000. Its totient is φ = 1277684757120.

The previous prime is 1320321223217. The next prime is 1320321223241. The reversal of 1320321223231 is 1323221230231.

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

It is a cyclic number.

It is not a de Polignac number, because 1320321223231 - 2²¹ = 1320319126079 is a prime.

It is a super-2 number, since 2×1320321223231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1320321223196 and 1320321223205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320321223241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144795 + ... + 1631443.

It is an arithmetic number, because the mean of its divisors is an integer number (170370090000).

Almost surely, 2^{1320321223231} is an apocalyptic number.

1320321223231 is a deficient number, since it is larger than the sum of its proper divisors (42639496769).

1320321223231 is a wasteful number, since it uses less digits than its factorization.

1320321223231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515329.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 1320321223231 its reverse (1323221230231), we get a palindrome (2643542453462).

The spelling of 1320321223231 in words is "one trillion, three hundred twenty billion, three hundred twenty-one million, two hundred twenty-three thousand, two hundred thirty-one".