130321130221 has 4 divisors (see below), whose sum is σ = 130347791100. Its totient is φ = 130294469344.

The previous prime is 130321130213. The next prime is 130321130239. The reversal of 130321130221 is 122031123031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65990416996 + 64330713225 = 256886^2 + 253635^2 .

It is a cyclic number.

It is not a de Polignac number, because 130321130221 - 2³ = 130321130213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130321130021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13323106 + ... + 13332883.

It is an arithmetic number, because the mean of its divisors is an integer number (32586947775).

Almost surely, 2^130321130221 is an apocalyptic number.

It is an amenable number.

130321130221 is a deficient number, since it is larger than the sum of its proper divisors (26660879).

130321130221 is an equidigital number, since it uses as much as digits as its factorization.

130321130221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26660878.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 130321130221 its reverse (122031123031), we get a palindrome (252352253252).

The spelling of 130321130221 in words is "one hundred thirty billion, three hundred twenty-one million, one hundred thirty thousand, two hundred twenty-one".