320200131 has 8 divisors (see below), whose sum is σ = 432946944. Its totient is φ = 210460040.

The previous prime is 320200129. The next prime is 320200157. The reversal of 320200131 is 131002023.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 320200131 - 2¹ = 320200129 is a prime.

It is a super-2 number, since 2×320200131² = 205056247784834322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (320200121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 751431 + ... + 751856.

It is an arithmetic number, because the mean of its divisors is an integer number (54118368).

Almost surely, 2^320200131 is an apocalyptic number.

320200131 is a deficient number, since it is larger than the sum of its proper divisors (112746813).

320200131 is a wasteful number, since it uses less digits than its factorization.

320200131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503361.

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

The square root of 320200131 is about 17894.1367771681. The cubic root of 320200131 is about 684.1329402868.

Adding to 320200131 its reverse (131002023), we get a palindrome (451202154).

The spelling of 320200131 in words is "three hundred twenty million, two hundred thousand, one hundred thirty-one".