320112231 has 16 divisors (see below), whose sum is σ = 441197568. Its totient is φ = 206236800.

The previous prime is 320112211. The next prime is 320112239. The reversal of 320112231 is 132211023.

It is not a de Polignac number, because 320112231 - 2¹⁷ = 319981159 is a prime.

It is a super-2 number, since 2×320112231² = 204943680871594722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 320112231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320112239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79980 + ... + 83886.

It is an arithmetic number, because the mean of its divisors is an integer number (27574848).

Almost surely, 2^320112231 is an apocalyptic number.

320112231 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

320112231 is a deficient number, since it is larger than the sum of its proper divisors (121085337).

320112231 is a wasteful number, since it uses less digits than its factorization.

320112231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4822.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 320112231 is about 17891.6804968119. The cubic root of 320112231 is about 684.0703327869.

Adding to 320112231 its reverse (132211023), we get a palindrome (452323254).

The spelling of 320112231 in words is "three hundred twenty million, one hundred twelve thousand, two hundred thirty-one".