20005115631130 has 64 divisors (see below), whose sum is σ = 41859009983232. Its totient is φ = 6741739952640.

The previous prime is 20005115631119. The next prime is 20005115631131. The reversal of 20005115631130 is 3113651150002.

It is not an unprimeable number, because it can be changed into a prime (20005115631131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2523501 + ... + 6810160.

It is an arithmetic number, because the mean of its divisors is an integer number (654047030988).

Almost surely, 2^{20005115631130} is an apocalyptic number.

20005115631130 is an abundant number, since it is smaller than the sum of its proper divisors (21853894352102).

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

20005115631130 is a wasteful number, since it uses less digits than its factorization.

20005115631130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9334199.

The product of its (nonzero) digits is 2700, while the sum is 28.

Adding to 20005115631130 its reverse (3113651150002), we get a palindrome (23118766781132).

The spelling of 20005115631130 in words is "twenty trillion, five billion, one hundred fifteen million, six hundred thirty-one thousand, one hundred thirty".