4521102020 has 24 divisors (see below), whose sum is σ = 9696322944. Its totient is φ = 1769962976.

The previous prime is 4521101971. The next prime is 4521102029. The reversal of 4521102020 is 202011254.

It is a self number, because there is not a number n which added to its sum of digits gives 4521102020.

It is not an unprimeable number, because it can be changed into a prime (4521102029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2403902 + ... + 2405781.

It is an arithmetic number, because the mean of its divisors is an integer number (404013456).

Almost surely, 2^4521102020 is an apocalyptic number.

It is an amenable number.

4521102020 is an abundant number, since it is smaller than the sum of its proper divisors (5175220924).

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

4521102020 is a wasteful number, since it uses less digits than its factorization.

4521102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4809739 (or 4809737 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 4521102020 is about 67239.1405358516. The cubic root of 4521102020 is about 1653.5402431207.

Adding to 4521102020 its reverse (202011254), we get a palindrome (4723113274).

The spelling of 4521102020 in words is "four billion, five hundred twenty-one million, one hundred two thousand, twenty".