505122102132409 has 2 divisors, whose sum is σ = 505122102132410. Its totient is φ = 505122102132408.

The previous prime is 505122102132377. The next prime is 505122102132433. The reversal of 505122102132409 is 904231201221505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 439880990755600 + 65241111376809 = 20973340^2 + 8077197^2 .

It is a cyclic number.

It is not a de Polignac number, because 505122102132409 - 2⁵ = 505122102132377 is a prime.

It is not a weakly prime, because it can be changed into another prime (505122102132499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252561051066204 + 252561051066205.

It is an arithmetic number, because the mean of its divisors is an integer number (252561051066205).

Almost surely, 2^{505122102132409} is an apocalyptic number.

It is an amenable number.

505122102132409 is a deficient number, since it is larger than the sum of its proper divisors (1).

505122102132409 is an equidigital number, since it uses as much as digits as its factorization.

505122102132409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 505122102132409 in words is "five hundred five trillion, one hundred twenty-two billion, one hundred two million, one hundred thirty-two thousand, four hundred nine".