130210121 has 2 divisors, whose sum is σ = 130210122. Its totient is φ = 130210120.

The previous prime is 130210117. The next prime is 130210127. The reversal of 130210121 is 121012031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106832896 + 23377225 = 10336^2 + 4835^2 .

It is a cyclic number.

It is not a de Polignac number, because 130210121 - 2² = 130210117 is a prime.

It is a super-2 number, since 2×130210121² = 33909351221669282, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (130210127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65105060 + 65105061.

It is an arithmetic number, because the mean of its divisors is an integer number (65105061).

Almost surely, 2^130210121 is an apocalyptic number.

It is an amenable number.

130210121 is a deficient number, since it is larger than the sum of its proper divisors (1).

130210121 is an equidigital number, since it uses as much as digits as its factorization.

130210121 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 130210121 is about 11410.9649460508. The cubic root of 130210121 is about 506.8524858498.

Adding to 130210121 its reverse (121012031), we get a palindrome (251222152).

The spelling of 130210121 in words is "one hundred thirty million, two hundred ten thousand, one hundred twenty-one".