320131002 has 8 divisors (see below), whose sum is σ = 640262016. Its totient is φ = 106710332.

The previous prime is 320130949. The next prime is 320131003. The reversal of 320131002 is 200131023.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

320131002 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (320131003) 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, 26677578 + ... + 26677589.

It is an arithmetic number, because the mean of its divisors is an integer number (80032752).

Almost surely, 2^320131002 is an apocalyptic number.

320131002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320131002 is a wasteful number, since it uses less digits than its factorization.

320131002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53355172.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 320131002 is about 17892.2050625405. The cubic root of 320131002 is about 684.0837035488.

Adding to 320131002 its reverse (200131023), we get a palindrome (520262025).

The spelling of 320131002 in words is "three hundred twenty million, one hundred thirty-one thousand, two".