130321323221 has 4 divisors (see below), whose sum is σ = 133352051712. Its totient is φ = 127290594732.

The previous prime is 130321323193. The next prime is 130321323229. The reversal of 130321323221 is 122323123031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 122323123031 = 20177 ⋅6062503.

It is a cyclic number.

It is not a de Polignac number, because 130321323221 - 2³⁴ = 113141454037 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 (130321323229) 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, 1515364181 + ... + 1515364266.

It is an arithmetic number, because the mean of its divisors is an integer number (33338012928).

Almost surely, 2^130321323221 is an apocalyptic number.

It is an amenable number.

130321323221 is a deficient number, since it is larger than the sum of its proper divisors (3030728491).

130321323221 is an equidigital number, since it uses as much as digits as its factorization.

130321323221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3030728490.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 130321323221 its reverse (122323123031), we get a palindrome (252644446252).

The spelling of 130321323221 in words is "one hundred thirty billion, three hundred twenty-one million, three hundred twenty-three thousand, two hundred twenty-one".