102020012102 has 4 divisors (see below), whose sum is σ = 153030018156. Its totient is φ = 51010006050.

The previous prime is 102020012089. The next prime is 102020012147. The reversal of 102020012102 is 201210020201.

It is a happy number.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 25505003024 + ... + 25505003027.

It is an arithmetic number, because the mean of its divisors is an integer number (38257504539).

Almost surely, 2^102020012102 is an apocalyptic number.

102020012102 is a deficient number, since it is larger than the sum of its proper divisors (51010006054).

102020012102 is an equidigital number, since it uses as much as digits as its factorization.

102020012102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51010006053.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 102020012102 its reverse (201210020201), we get a palindrome (303230032303).

The spelling of 102020012102 in words is "one hundred two billion, twenty million, twelve thousand, one hundred two".