320543511250403 has 8 divisors (see below), whose sum is σ = 367277177785440. Its totient is φ = 274045278804480.

The previous prime is 320543511250397. The next prime is 320543511250471. The reversal of 320543511250403 is 304052115345023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320543511250403 - 2³² = 320539216283107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320543511250903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58858519358 + ... + 58858524803.

It is an arithmetic number, because the mean of its divisors is an integer number (45909647223180).

Almost surely, 2^{320543511250403} is an apocalyptic number.

320543511250403 is a deficient number, since it is larger than the sum of its proper divisors (46733666535037).

320543511250403 is a wasteful number, since it uses less digits than its factorization.

320543511250403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117717044557.

The product of its (nonzero) digits is 216000, while the sum is 38.

Adding to 320543511250403 its reverse (304052115345023), we get a palindrome (624595626595426).

The spelling of 320543511250403 in words is "three hundred twenty trillion, five hundred forty-three billion, five hundred eleven million, two hundred fifty thousand, four hundred three".