320144020043 has 32 divisors (see below), whose sum is σ = 362135992320. Its totient is φ = 281413440000.

The previous prime is 320144020019. The next prime is 320144020081. The reversal of 320144020043 is 340020441023.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320144020043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320144020093) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61908848 + ... + 61914018.

It is an arithmetic number, because the mean of its divisors is an integer number (11316749760).

Almost surely, 2^320144020043 is an apocalyptic number.

320144020043 is a deficient number, since it is larger than the sum of its proper divisors (41991972277).

320144020043 is a wasteful number, since it uses less digits than its factorization.

320144020043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9299.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 320144020043 its reverse (340020441023), we get a palindrome (660164461066).

The spelling of 320144020043 in words is "three hundred twenty billion, one hundred forty-four million, twenty thousand, forty-three".