130212321 has 8 divisors (see below), whose sum is σ = 173669184. Its totient is φ = 86781840.

The previous prime is 130212317. The next prime is 130212337. The reversal of 130212321 is 123212031.

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

It is not a de Polignac number, because 130212321 - 2² = 130212317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 130212321.

It is not an unprimeable number, because it can be changed into a prime (130212521) 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, 15516 + ... + 22386.

It is an arithmetic number, because the mean of its divisors is an integer number (21708648).

Almost surely, 2^130212321 is an apocalyptic number.

It is an amenable number.

130212321 is a deficient number, since it is larger than the sum of its proper divisors (43456863).

130212321 is an equidigital number, since it uses as much as digits as its factorization.

130212321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13191.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 130212321 is about 11411.0613441520. The cubic root of 130212321 is about 506.8553403877.

Adding to 130212321 its reverse (123212031), we get a palindrome (253424352).

The spelling of 130212321 in words is "one hundred thirty million, two hundred twelve thousand, three hundred twenty-one".