130120103021 has 2 divisors, whose sum is σ = 130120103022. Its totient is φ = 130120103020.

The previous prime is 130120102991. The next prime is 130120103033. The reversal of 130120103021 is 120301021031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129538087396 + 582015625 = 359914^2 + 24125^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130120103021 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 130120102987 and 130120103005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130120103041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65060051510 + 65060051511.

It is an arithmetic number, because the mean of its divisors is an integer number (65060051511).

Almost surely, 2^130120103021 is an apocalyptic number.

It is an amenable number.

130120103021 is a deficient number, since it is larger than the sum of its proper divisors (1).

130120103021 is an equidigital number, since it uses as much as digits as its factorization.

130120103021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 130120103021 its reverse (120301021031), we get a palindrome (250421124052).

The spelling of 130120103021 in words is "one hundred thirty billion, one hundred twenty million, one hundred three thousand, twenty-one".