1320243122043 has 10 divisors (see below), whose sum is σ = 1972215034284. Its totient is φ = 880162081308.

The previous prime is 1320243121999. The next prime is 1320243122053. The reversal of 1320243122043 is 3402213420231.

1320243122043 is a `hidden beast` number, since 1 + 3 + 2 + 0 + 2 + 431 + 220 + 4 + 3 = 666.

It is not a de Polignac number, because 1320243122043 - 2¹⁴ = 1320243105659 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1320243121998 and 1320243122016.

It is not an unprimeable number, because it can be changed into a prime (1320243122053) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 8149648821 + ... + 8149648982.

Almost surely, 2^{1320243122043} is an apocalyptic number.

1320243122043 is a deficient number, since it is larger than the sum of its proper divisors (651971912241).

1320243122043 is an equidigital number, since it uses as much as digits as its factorization.

1320243122043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16299297815 (or 16299297806 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 1320243122043 its reverse (3402213420231), we get a palindrome (4722456542274).

The spelling of 1320243122043 in words is "one trillion, three hundred twenty billion, two hundred forty-three million, one hundred twenty-two thousand, forty-three".