1320441431320 has 32 divisors (see below), whose sum is σ = 3241083514320. Its totient is φ = 480160520320.

The previous prime is 1320441431291. The next prime is 1320441431327. The reversal of 1320441431320 is 231341440231.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320441431327) 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, 1500501187 + ... + 1500502066.

Almost surely, 2^{1320441431320} is an apocalyptic number.

1320441431320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320441431320 is an abundant number, since it is smaller than the sum of its proper divisors (1920642083000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1320441431320 is a wasteful number, since it uses less digits than its factorization.

1320441431320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3001003275 (or 3001003271 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 1320441431320 its reverse (231341440231), we get a palindrome (1551782871551).

The spelling of 1320441431320 in words is "one trillion, three hundred twenty billion, four hundred forty-one million, four hundred thirty-one thousand, three hundred twenty".