102020020018 has 32 divisors (see below), whose sum is σ = 175175038080. Its totient is φ = 43652044800.

The previous prime is 102020020001. The next prime is 102020020019. The reversal of 102020020018 is 810020020201.

It is a junction number, because it is equal to n+sod(n) for n = 102020019983 and 102020020010.

It is not an unprimeable number, because it can be changed into a prime (102020020019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37938418 + ... + 37941106.

It is an arithmetic number, because the mean of its divisors is an integer number (5474219940).

Almost surely, 2^102020020018 is an apocalyptic number.

102020020018 is a deficient number, since it is larger than the sum of its proper divisors (73155018062).

102020020018 is a wasteful number, since it uses less digits than its factorization.

102020020018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6082.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102020020018 its reverse (810020020201), we get a palindrome (912040040219).

The spelling of 102020020018 in words is "one hundred two billion, twenty million, twenty thousand, eighteen".