320130002 has 4 divisors (see below), whose sum is σ = 480195006. Its totient is φ = 160065000.

The previous prime is 320129989. The next prime is 320130007. The reversal of 320130002 is 200031023.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 226833721 + 93296281 = 15061^2 + 9659^2 .

It is not an unprimeable number, because it can be changed into a prime (320130007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80032499 + ... + 80032502.

Almost surely, 2^320130002 is an apocalyptic number.

320130002 is a deficient number, since it is larger than the sum of its proper divisors (160065004).

320130002 is a wasteful number, since it uses less digits than its factorization.

320130002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160065003.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 320130002 is about 17892.1771173885. The cubic root of 320130002 is about 684.0829912524.

Adding to 320130002 its reverse (200031023), we get a palindrome (520161025).

The spelling of 320130002 in words is "three hundred twenty million, one hundred thirty thousand, two".