320989178111 has 32 divisors (see below), whose sum is σ = 393930432000. Its totient is φ = 255415006080.

The previous prime is 320989178089. The next prime is 320989178123. The reversal of 320989178111 is 111871989023.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 320989178111 - 2¹⁰ = 320989177087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320989178111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320989177111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5688665 + ... + 5744813.

It is an arithmetic number, because the mean of its divisors is an integer number (12310326000).

Almost surely, 2^320989178111 is an apocalyptic number.

320989178111 is a deficient number, since it is larger than the sum of its proper divisors (72941253889).

320989178111 is a wasteful number, since it uses less digits than its factorization.

320989178111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57039.

The product of its (nonzero) digits is 217728, while the sum is 50.

The spelling of 320989178111 in words is "three hundred twenty billion, nine hundred eighty-nine million, one hundred seventy-eight thousand, one hundred eleven".