320011131 has 16 divisors (see below), whose sum is σ = 466892928. Its totient is φ = 193353600.

The previous prime is 320011099. The next prime is 320011157. The reversal of 320011131 is 131110023.

It is not a de Polignac number, because 320011131 - 2⁵ = 320011099 is a prime.

It is a super-2 number, since 2×320011131² = 204814247927798322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (320011831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3726 + ... + 25571.

It is an arithmetic number, because the mean of its divisors is an integer number (29180808).

Almost surely, 2^320011131 is an apocalyptic number.

320011131 is a deficient number, since it is larger than the sum of its proper divisors (146881797).

320011131 is a wasteful number, since it uses less digits than its factorization.

320011131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29642.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 320011131 is about 17888.8549382010. The cubic root of 320011131 is about 683.9983093047.

Adding to 320011131 its reverse (131110023), we get a palindrome (451121154).

The spelling of 320011131 in words is "three hundred twenty million, eleven thousand, one hundred thirty-one".