8120113530 has 16 divisors (see below), whose sum is σ = 19488272544. Its totient is φ = 2165363600.

The previous prime is 8120113523. The next prime is 8120113541. The reversal of 8120113530 is 353110218.

It is a self number, because there is not a number n which added to its sum of digits gives 8120113530.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135335196 + ... + 135335255.

It is an arithmetic number, because the mean of its divisors is an integer number (1218017034).

Almost surely, 2^8120113530 is an apocalyptic number.

8120113530 is an abundant number, since it is smaller than the sum of its proper divisors (11368159014).

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

8120113530 is a wasteful number, since it uses less digits than its factorization.

8120113530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270670461.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 8120113530 is about 90111.6725513404. The cubic root of 8120113530 is about 2009.9597798937.

Adding to 8120113530 its reverse (353110218), we get a palindrome (8473223748).

The spelling of 8120113530 in words is "eight billion, one hundred twenty million, one hundred thirteen thousand, five hundred thirty".