320507941543 has 4 divisors (see below), whose sum is σ = 320612039440. Its totient is φ = 320403843648.

The previous prime is 320507941483. The next prime is 320507941571. The reversal of 320507941543 is 345149705023.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 320507941543 - 2⁹ = 320507941031 is a prime.

It is a super-2 number, since 2×320507941543² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320507941543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320507941583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52044330 + ... + 52050487.

It is an arithmetic number, because the mean of its divisors is an integer number (80153009860).

Almost surely, 2^320507941543 is an apocalyptic number.

320507941543 is a deficient number, since it is larger than the sum of its proper divisors (104097897).

320507941543 is a wasteful number, since it uses less digits than its factorization.

320507941543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104097896.

The product of its (nonzero) digits is 453600, while the sum is 43.

The spelling of 320507941543 in words is "three hundred twenty billion, five hundred seven million, nine hundred forty-one thousand, five hundred forty-three".