130120121 has 2 divisors, whose sum is σ = 130120122. Its totient is φ = 130120120.

The previous prime is 130120103. The next prime is 130120139. The reversal of 130120121 is 121021031.

It is a balanced prime because it is at equal distance from previous prime (130120103) and next prime (130120139).

It can be written as a sum of positive squares in only one way, i.e., 127351225 + 2768896 = 11285^2 + 1664^2 .

It is a cyclic number.

It is not a de Polignac number, because 130120121 - 2²⁶ = 63011257 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (130120181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65060060 + 65060061.

It is an arithmetic number, because the mean of its divisors is an integer number (65060061).

Almost surely, 2^130120121 is an apocalyptic number.

It is an amenable number.

130120121 is a deficient number, since it is larger than the sum of its proper divisors (1).

130120121 is an equidigital number, since it uses as much as digits as its factorization.

130120121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 130120121 is about 11407.0206890318. The cubic root of 130120121 is about 506.7356817249.

Adding to 130120121 its reverse (121021031), we get a palindrome (251141152).

The spelling of 130120121 in words is "one hundred thirty million, one hundred twenty thousand, one hundred twenty-one".