320324143155 has 16 divisors (see below), whose sum is σ = 512789991840. Its totient is φ = 170749088768.

The previous prime is 320324143133. The next prime is 320324143159. The reversal of 320324143155 is 551341423023.

It is a cyclic number.

It is not a de Polignac number, because 320324143155 - 2⁹ = 320324142643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320324143159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5624112 + ... + 5680781.

It is an arithmetic number, because the mean of its divisors is an integer number (32049374490).

Almost surely, 2^320324143155 is an apocalyptic number.

320324143155 is a deficient number, since it is larger than the sum of its proper divisors (192465848685).

320324143155 is a wasteful number, since it uses less digits than its factorization.

320324143155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11306790.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 320324143155 its reverse (551341423023), we get a palindrome (871665566178).

The spelling of 320324143155 in words is "three hundred twenty billion, three hundred twenty-four million, one hundred forty-three thousand, one hundred fifty-five".