20091092820102 has 24 divisors (see below), whose sum is σ = 43930065344880. Its totient is φ = 6635590288560.

The previous prime is 20091092820077. The next prime is 20091092820131. The reversal of 20091092820102 is 20102829019002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5120052274 + ... + 5120056197.

It is an arithmetic number, because the mean of its divisors is an integer number (1830419389370).

Almost surely, 2^{20091092820102} is an apocalyptic number.

20091092820102 is an abundant number, since it is smaller than the sum of its proper divisors (23838972524778).

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

20091092820102 is a wasteful number, since it uses less digits than its factorization.

20091092820102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10240108588 (or 10240108585 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The spelling of 20091092820102 in words is "twenty trillion, ninety-one billion, ninety-two million, eight hundred twenty thousand, one hundred two".