104202530521 has 2 divisors, whose sum is σ = 104202530522. Its totient is φ = 104202530520.

The previous prime is 104202530501. The next prime is 104202530539. The reversal of 104202530521 is 125035202401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92100110400 + 12102420121 = 303480^2 + 110011^2 .

It is a cyclic number.

It is not a de Polignac number, because 104202530521 - 2¹⁷ = 104202399449 is a prime.

It is not a weakly prime, because it can be changed into another prime (104202530501) 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, 52101265260 + 52101265261.

It is an arithmetic number, because the mean of its divisors is an integer number (52101265261).

Almost surely, 2^104202530521 is an apocalyptic number.

It is an amenable number.

104202530521 is a deficient number, since it is larger than the sum of its proper divisors (1).

104202530521 is an equidigital number, since it uses as much as digits as its factorization.

104202530521 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 25.

Adding to 104202530521 its reverse (125035202401), we get a palindrome (229237732922).

The spelling of 104202530521 in words is "one hundred four billion, two hundred two million, five hundred thirty thousand, five hundred twenty-one".