1320311324043 has 40 divisors (see below), whose sum is σ = 2044206979760. Its totient is φ = 848560898880.

The previous prime is 1320311324027. The next prime is 1320311324069. The reversal of 1320311324043 is 3404231130231.

It is a happy number.

1320311324043 is a `hidden beast` number, since 1 + 3 + 20 + 311 + 324 + 0 + 4 + 3 = 666.

It is not a de Polignac number, because 1320311324043 - 2⁴ = 1320311324027 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1320311323998 and 1320311324016.

It is not an unprimeable number, because it can be changed into a prime (1320311324093) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1694173 + ... + 2347518.

It is an arithmetic number, because the mean of its divisors is an integer number (51105174494).

Almost surely, 2^{1320311324043} is an apocalyptic number.

1320311324043 is a deficient number, since it is larger than the sum of its proper divisors (723895655717).

1320311324043 is a wasteful number, since it uses less digits than its factorization.

1320311324043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4041849 (or 4041840 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 1320311324043 its reverse (3404231130231), we get a palindrome (4724542454274).

The spelling of 1320311324043 in words is "one trillion, three hundred twenty billion, three hundred eleven million, three hundred twenty-four thousand, forty-three".