320320162543 has 2 divisors, whose sum is σ = 320320162544. Its totient is φ = 320320162542.

The previous prime is 320320162511. The next prime is 320320162559. The reversal of 320320162543 is 345261023023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320320162543 - 2⁵ = 320320162511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320320163543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160160081271 + 160160081272.

It is an arithmetic number, because the mean of its divisors is an integer number (160160081272).

Almost surely, 2^320320162543 is an apocalyptic number.

320320162543 is a deficient number, since it is larger than the sum of its proper divisors (1).

320320162543 is an equidigital number, since it uses as much as digits as its factorization.

320320162543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 320320162543 its reverse (345261023023), we get a palindrome (665581185566).

The spelling of 320320162543 in words is "three hundred twenty billion, three hundred twenty million, one hundred sixty-two thousand, five hundred forty-three".