320155213142 has 8 divisors (see below), whose sum is σ = 483738169176. Its totient is φ = 158909156752.

The previous prime is 320155213141. The next prime is 320155213177. The reversal of 320155213142 is 241312551023.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320155213141) 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, 584224568 + ... + 584225115.

It is an arithmetic number, because the mean of its divisors is an integer number (60467271147).

Almost surely, 2^320155213142 is an apocalyptic number.

320155213142 is a deficient number, since it is larger than the sum of its proper divisors (163582956034).

320155213142 is a wasteful number, since it uses less digits than its factorization.

320155213142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168449822.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 320155213142 its reverse (241312551023), we get a palindrome (561467764165).

The spelling of 320155213142 in words is "three hundred twenty billion, one hundred fifty-five million, two hundred thirteen thousand, one hundred forty-two".