1320111321330 has 64 divisors (see below), whose sum is σ = 3188860416000. Its totient is φ = 349747886016.

The previous prime is 1320111321307. The next prime is 1320111321337. The reversal of 1320111321330 is 331231110231.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1320111321297 and 1320111321306.

It is not an unprimeable number, because it can be changed into a prime (1320111321337) 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 31 ways as a sum of consecutive naturals, for example, 3140589 + ... + 3536031.

It is an arithmetic number, because the mean of its divisors is an integer number (49825944000).

Almost surely, 2^{1320111321330} is an apocalyptic number.

1320111321330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1320111321330 is an abundant number, since it is smaller than the sum of its proper divisors (1868749094670).

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

1320111321330 is a wasteful number, since it uses less digits than its factorization.

1320111321330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396175.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1320111321330 its reverse (331231110231), we get a palindrome (1651342431561).

The spelling of 1320111321330 in words is "one trillion, three hundred twenty billion, one hundred eleven million, three hundred twenty-one thousand, three hundred thirty".