20512112005035 has 144 divisors (see below), whose sum is σ = 41799620588544. Its totient is φ = 9277610638464.

The previous prime is 20512112004977. The next prime is 20512112005039. The reversal of 20512112005035 is 53050021121502.

20512112005035 is a `hidden beast` number, since 2 + 0 + 512 + 112 + 0 + 0 + 5 + 0 + 35 = 666.

It is not a de Polignac number, because 20512112005035 - 2¹⁴ = 20512111988651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20512112005039) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 80021584 + ... + 80277506.

It is an arithmetic number, because the mean of its divisors is an integer number (290275142976).

Almost surely, 2^{20512112005035} is an apocalyptic number.

20512112005035 is an abundant number, since it is smaller than the sum of its proper divisors (21287508583509).

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

20512112005035 is a wasteful number, since it uses less digits than its factorization.

20512112005035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256334 (or 256324 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

Adding to 20512112005035 its reverse (53050021121502), we get a palindrome (73562133126537).

The spelling of 20512112005035 in words is "twenty trillion, five hundred twelve billion, one hundred twelve million, five thousand, thirty-five".