321230130 has 96 divisors (see below), whose sum is σ = 884162304. Its totient is φ = 74400768.

The previous prime is 321230123. The next prime is 321230137. The reversal of 321230130 is 31032123.

321230130 = T₆₁₃₉ + T₆₁₄₀ + ... + T₆₁₅₅.

It is an interprime number because it is at equal distance from previous prime (321230123) and next prime (321230137).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (321230137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 84327 + ... + 88053.

It is an arithmetic number, because the mean of its divisors is an integer number (9210024).

Almost surely, 2^321230130 is an apocalyptic number.

321230130 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 321230130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (442081152).

321230130 is an abundant number, since it is smaller than the sum of its proper divisors (562932174).

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

321230130 is a wasteful number, since it uses less digits than its factorization.

321230130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3780 (or 3767 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 321230130 is about 17922.8940185451. The cubic root of 321230130 is about 684.8657132824.

Adding to 321230130 its reverse (31032123), we get a palindrome (352262253).

The spelling of 321230130 in words is "three hundred twenty-one million, two hundred thirty thousand, one hundred thirty".