20209382102 has 16 divisors (see below), whose sum is σ = 37309628832. Its totient is φ = 7994920320.

The previous prime is 20209382069. The next prime is 20209382107. The reversal of 20209382102 is 20128390202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20209382107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55520099 + ... + 55520462.

It is an arithmetic number, because the mean of its divisors is an integer number (2331851802).

Almost surely, 2^20209382102 is an apocalyptic number.

20209382102 is a deficient number, since it is larger than the sum of its proper divisors (17100246730).

20209382102 is a wasteful number, since it uses less digits than its factorization.

20209382102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111040583.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 20209382102 in words is "twenty billion, two hundred nine million, three hundred eighty-two thousand, one hundred two".