321240130 has 8 divisors (see below), whose sum is σ = 578232252. Its totient is φ = 128496048.

The previous prime is 321240119. The next prime is 321240131. The reversal of 321240130 is 31042123.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 290736601 + 30503529 = 17051^2 + 5523^2 .

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

It is a super-2 number, since 2×321240130² = 206390442244833800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (321240131) 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 3 ways as a sum of consecutive naturals, for example, 16061997 + ... + 16062016.

Almost surely, 2^321240130 is an apocalyptic number.

321240130 is a deficient number, since it is larger than the sum of its proper divisors (256992122).

321240130 is a wasteful number, since it uses less digits than its factorization.

321240130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32124020.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 321240130 is about 17923.1729891780. The cubic root of 321240130 is about 684.8728199072.

Adding to 321240130 its reverse (31042123), we get a palindrome (352282253).

The spelling of 321240130 in words is "three hundred twenty-one million, two hundred forty thousand, one hundred thirty".