130123548221 has 2 divisors, whose sum is σ = 130123548222. Its totient is φ = 130123548220.

The previous prime is 130123548173. The next prime is 130123548293. The reversal of 130123548221 is 122845321031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124087812121 + 6035736100 = 352261^2 + 77690^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130123548221 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130123568221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65061774110 + 65061774111.

It is an arithmetic number, because the mean of its divisors is an integer number (65061774111).

Almost surely, 2^130123548221 is an apocalyptic number.

It is an amenable number.

130123548221 is a deficient number, since it is larger than the sum of its proper divisors (1).

130123548221 is an equidigital number, since it uses as much as digits as its factorization.

130123548221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 32.

Adding to 130123548221 its reverse (122845321031), we get a palindrome (252968869252).

The spelling of 130123548221 in words is "one hundred thirty billion, one hundred twenty-three million, five hundred forty-eight thousand, two hundred twenty-one".