501061013020 has 24 divisors (see below), whose sum is σ = 1052257974768. Its totient is φ = 200418720000.

The previous prime is 501061012993. The next prime is 501061013021. The reversal of 501061013020 is 20310160105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501061013021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407295 + ... + 1080745.

It is an arithmetic number, because the mean of its divisors is an integer number (43844082282).

Almost surely, 2^501061013020 is an apocalyptic number.

It is an amenable number.

501061013020 is an abundant number, since it is smaller than the sum of its proper divisors (551196961748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

501061013020 is a wasteful number, since it uses less digits than its factorization.

501061013020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710661 (or 710659 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

Adding to 501061013020 its reverse (20310160105), we get a palindrome (521371173125).

The spelling of 501061013020 in words is "five hundred one billion, sixty-one million, thirteen thousand, twenty".