501301020 has 48 divisors (see below), whose sum is σ = 1531248768. Its totient is φ = 121527360.

The previous prime is 501301019. The next prime is 501301033. The reversal of 501301020 is 20103105.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 501300987 and 501301005.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 379114 + ... + 380433.

It is an arithmetic number, because the mean of its divisors is an integer number (31901016).

Almost surely, 2^501301020 is an apocalyptic number.

It is an amenable number.

501301020 is an abundant number, since it is smaller than the sum of its proper divisors (1029947748).

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

501301020 is a wasteful number, since it uses less digits than its factorization.

501301020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759570 (or 759568 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 501301020 is about 22389.7525667436. The cubic root of 501301020 is about 794.3883432581.

Adding to 501301020 its reverse (20103105), we get a palindrome (521404125).

The spelling of 501301020 in words is "five hundred one million, three hundred one thousand, twenty".