320042030155 has 8 divisors (see below), whose sum is σ = 384422224032. Its totient is φ = 255785765568.

The previous prime is 320042030149. The next prime is 320042030183. The reversal of 320042030155 is 551030240023.

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 320042030155 - 2¹¹ = 320042028107 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30976639 + ... + 30986968.

It is an arithmetic number, because the mean of its divisors is an integer number (48052778004).

Almost surely, 2^320042030155 is an apocalyptic number.

320042030155 is a deficient number, since it is larger than the sum of its proper divisors (64380193877).

320042030155 is a wasteful number, since it uses less digits than its factorization.

320042030155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61964645.

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 320042030155 its reverse (551030240023), we get a palindrome (871072270178).

The spelling of 320042030155 in words is "three hundred twenty billion, forty-two million, thirty thousand, one hundred fifty-five".