502115020129 has 2 divisors, whose sum is σ = 502115020130. Its totient is φ = 502115020128.

The previous prime is 502115020109. The next prime is 502115020157. The reversal of 502115020129 is 921020511205.

It is an a-pointer prime, because the next prime (502115020157) can be obtained adding 502115020129 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 265583561104 + 236531459025 = 515348^2 + 486345^2 .

It is a cyclic number.

It is not a de Polignac number, because 502115020129 - 2⁵ = 502115020097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 502115020097 and 502115020106.

It is not a weakly prime, because it can be changed into another prime (502115020109) 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, 251057510064 + 251057510065.

It is an arithmetic number, because the mean of its divisors is an integer number (251057510065).

Almost surely, 2^502115020129 is an apocalyptic number.

It is an amenable number.

502115020129 is a deficient number, since it is larger than the sum of its proper divisors (1).

502115020129 is an equidigital number, since it uses as much as digits as its factorization.

502115020129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 28.

The spelling of 502115020129 in words is "five hundred two billion, one hundred fifteen million, twenty thousand, one hundred twenty-nine".