130340423221 has 2 divisors, whose sum is σ = 130340423222. Its totient is φ = 130340423220.

The previous prime is 130340423201. The next prime is 130340423251. The reversal of 130340423221 is 122324043031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129870140625 + 470282596 = 360375^2 + 21686^2 .

It is a cyclic number.

It is not a de Polignac number, because 130340423221 - 2¹⁷ = 130340292149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130340423201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65170211610 + 65170211611.

It is an arithmetic number, because the mean of its divisors is an integer number (65170211611).

Almost surely, 2^130340423221 is an apocalyptic number.

It is an amenable number.

130340423221 is a deficient number, since it is larger than the sum of its proper divisors (1).

130340423221 is an equidigital number, since it uses as much as digits as its factorization.

130340423221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 130340423221 its reverse (122324043031), we get a palindrome (252664466252).

The spelling of 130340423221 in words is "one hundred thirty billion, three hundred forty million, four hundred twenty-three thousand, two hundred twenty-one".