1320003322443 has 72 divisors (see below), whose sum is σ = 2090654656272. Its totient is φ = 802116117504.

The previous prime is 1320003322439. The next prime is 1320003322453. The reversal of 1320003322443 is 3442233000231.

1320003322443 is a `hidden beast` number, since 1 + 320 + 0 + 0 + 332 + 2 + 4 + 4 + 3 = 666.

It is not a de Polignac number, because 1320003322443 - 2² = 1320003322439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1320003322453) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 50926855 + ... + 50952767.

It is an arithmetic number, because the mean of its divisors is an integer number (29036870226).

Almost surely, 2^{1320003322443} is an apocalyptic number.

1320003322443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1320003322443 is a deficient number, since it is larger than the sum of its proper divisors (770651333829).

1320003322443 is a wasteful number, since it uses less digits than its factorization.

1320003322443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26365 (or 26349 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 1320003322443 its reverse (3442233000231), we get a palindrome (4762236322674).

The spelling of 1320003322443 in words is "one trillion, three hundred twenty billion, three million, three hundred twenty-two thousand, four hundred forty-three".