20684701103 has 6 divisors (see below), whose sum is σ = 22736076552. Its totient is φ = 18804273620.

The previous prime is 20684701099. The next prime is 20684701109. The reversal of 20684701103 is 30110748602.

It is not a de Polignac number, because 20684701103 - 2² = 20684701099 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20684701103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20684701109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 85473851 + ... + 85474092.

It is an arithmetic number, because the mean of its divisors is an integer number (3789346092).

Almost surely, 2^20684701103 is an apocalyptic number.

20684701103 is a deficient number, since it is larger than the sum of its proper divisors (2051375449).

20684701103 is a wasteful number, since it uses less digits than its factorization.

20684701103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170947965 (or 170947954 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The spelling of 20684701103 in words is "twenty billion, six hundred eighty-four million, seven hundred one thousand, one hundred three".