320131132 has 12 divisors (see below), whose sum is σ = 561629376. Its totient is φ = 159665600.

The previous prime is 320131129. The next prime is 320131139. The reversal of 320131132 is 231131023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320131139) 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, 98188 + ... + 101395.

It is an arithmetic number, because the mean of its divisors is an integer number (46802448).

Almost surely, 2^320131132 is an apocalyptic number.

It is an amenable number.

320131132 is a deficient number, since it is larger than the sum of its proper divisors (241498244).

320131132 is a wasteful number, since it uses less digits than its factorization.

320131132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199988 (or 199986 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 320131132 is about 17892.2086954071. The cubic root of 320131132 is about 684.0837961472.

Adding to 320131132 its reverse (231131023), we get a palindrome (551262155).

The spelling of 320131132 in words is "three hundred twenty million, one hundred thirty-one thousand, one hundred thirty-two".