130042152521 has 2 divisors, whose sum is σ = 130042152522. Its totient is φ = 130042152520.

The previous prime is 130042152503. The next prime is 130042152533. The reversal of 130042152521 is 125251240031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70328388025 + 59713764496 = 265195^2 + 244364^2 .

It is a cyclic number.

It is not a de Polignac number, because 130042152521 - 2²² = 130037958217 is a prime.

It is a super-2 number, since 2×130042152521² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (130042151521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65021076260 + 65021076261.

It is an arithmetic number, because the mean of its divisors is an integer number (65021076261).

Almost surely, 2^130042152521 is an apocalyptic number.

It is an amenable number.

130042152521 is a deficient number, since it is larger than the sum of its proper divisors (1).

130042152521 is an equidigital number, since it uses as much as digits as its factorization.

130042152521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 130042152521 its reverse (125251240031), we get a palindrome (255293392552).

The spelling of 130042152521 in words is "one hundred thirty billion, forty-two million, one hundred fifty-two thousand, five hundred twenty-one".