20534303081228 has 12 divisors (see below), whose sum is σ = 37094224921152. Its totient is φ = 9935953103760.

The previous prime is 20534303081221. The next prime is 20534303081249. The reversal of 20534303081228 is 82218030343502.

It is not an unprimeable number, because it can be changed into a prime (20534303081221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82799609075 + ... + 82799609322.

It is an arithmetic number, because the mean of its divisors is an integer number (3091185410096).

Almost surely, 2^{20534303081228} is an apocalyptic number.

It is an amenable number.

20534303081228 is a deficient number, since it is larger than the sum of its proper divisors (16559921839924).

20534303081228 is a wasteful number, since it uses less digits than its factorization.

20534303081228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165599218432 (or 165599218430 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 20534303081228 in words is "twenty trillion, five hundred thirty-four billion, three hundred three million, eighty-one thousand, two hundred twenty-eight".