321200130 has 64 divisors (see below), whose sum is σ = 825292800. Its totient is φ = 79761600.

The previous prime is 321200119. The next prime is 321200137. The reversal of 321200130 is 31002123.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (321200137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28855 + ... + 38405.

It is an arithmetic number, because the mean of its divisors is an integer number (12895200).

Almost surely, 2^321200130 is an apocalyptic number.

321200130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 321200130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (412646400).

321200130 is an abundant number, since it is smaller than the sum of its proper divisors (504092670).

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

321200130 is a wasteful number, since it uses less digits than its factorization.

321200130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9639.

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

The square root of 321200130 is about 17922.0570805921. The cubic root of 321200130 is about 684.8443925229.

Adding to 321200130 its reverse (31002123), we get a palindrome (352202253).

The spelling of 321200130 in words is "three hundred twenty-one million, two hundred thousand, one hundred thirty".