5111530020 has 144 divisors (see below), whose sum is σ = 15973055280. Its totient is φ = 1322155008.

The previous prime is 5111529989. The next prime is 5111530033. The reversal of 5111530020 is 200351115.

5111530020 is a `hidden beast` number, since 5 + 111 + 530 + 0 + 20 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 91240704 + 5020289316 = 9552^2 + 70854^2 .

It is a super-2 number, since 2×5111530020² = 52255478290722400800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 5111529975 and 5111530002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2589754 + ... + 2591726.

It is an arithmetic number, because the mean of its divisors is an integer number (110923995).

Almost surely, 2^5111530020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5111530020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7986527640).

5111530020 is an abundant number, since it is smaller than the sum of its proper divisors (10861525260).

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

5111530020 is a wasteful number, since it uses less digits than its factorization.

5111530020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2414 (or 2409 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 5111530020 is about 71494.9649975437. The cubic root of 5111530020 is about 1722.5968098111.

Adding to 5111530020 its reverse (200351115), we get a palindrome (5311881135).

The spelling of 5111530020 in words is "five billion, one hundred eleven million, five hundred thirty thousand, twenty".