1320033444420 has 96 divisors (see below), whose sum is σ = 3703789958400. Its totient is φ = 351276355584.

The previous prime is 1320033444413. The next prime is 1320033444421. The reversal of 1320033444420 is 244443300231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1320033444421) 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, 187049532 + ... + 187056588.

It is an arithmetic number, because the mean of its divisors is an integer number (38581145400).

Almost surely, 2^{1320033444420} is an apocalyptic number.

1320033444420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320033444420 is an abundant number, since it is smaller than the sum of its proper divisors (2383756513980).

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

1320033444420 is a wasteful number, since it uses less digits than its factorization.

1320033444420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13117 (or 13115 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 1320033444420 its reverse (244443300231), we get a palindrome (1564476744651).

The spelling of 1320033444420 in words is "one trillion, three hundred twenty billion, thirty-three million, four hundred forty-four thousand, four hundred twenty".