130121543 has 2 divisors, whose sum is σ = 130121544. Its totient is φ = 130121542.

The previous prime is 130121531. The next prime is 130121591. The reversal of 130121543 is 345121031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 130121543 - 2⁸ = 130121287 is a prime.

It is a super-5 number, since 5×130121543⁵ (a number of 42 digits) contains 55555 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130121513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65060771 + 65060772.

It is an arithmetic number, because the mean of its divisors is an integer number (65060772).

Almost surely, 2^130121543 is an apocalyptic number.

130121543 is a deficient number, since it is larger than the sum of its proper divisors (1).

130121543 is an equidigital number, since it uses as much as digits as its factorization.

130121543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 130121543 is about 11407.0830188966. The cubic root of 130121543 is about 506.7375276488.

Adding to 130121543 its reverse (345121031), we get a palindrome (475242574).

The spelling of 130121543 in words is "one hundred thirty million, one hundred twenty-one thousand, five hundred forty-three".