320130232200 has 72 divisors (see below), whose sum is σ = 1075104035850. Its totient is φ = 85368061440.

The previous prime is 320130232183. The next prime is 320130232207. The reversal of 320130232200 is 2232031023.

It is a happy number.

320130232200 is a `hidden beast` number, since 3 + 201 + 30 + 232 + 200 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 231282122724 + 88848109476 = 480918^2 + 298074^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (320130232207) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 88923265 + ... + 88926864.

Almost surely, 2^320130232200 is an apocalyptic number.

320130232200 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

320130232200 is an abundant number, since it is smaller than the sum of its proper divisors (754973803650).

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

320130232200 is a wasteful number, since it uses less digits than its factorization.

320130232200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177850151 (or 177850139 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 320130232200 its reverse (2232031023), we get a palindrome (322362263223).

The spelling of 320130232200 in words is "three hundred twenty billion, one hundred thirty million, two hundred thirty-two thousand, two hundred".