102102100102 has 4 divisors (see below), whose sum is σ = 153153150156. Its totient is φ = 51051050050.

The previous prime is 102102100069. The next prime is 102102100129. The reversal of 102102100102 is 201001201201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 201001201201 = 12163 ⋅16525627.

It is a super-3 number, since 3×102102100102³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 25525525024 + ... + 25525525027.

It is an arithmetic number, because the mean of its divisors is an integer number (38288287539).

Almost surely, 2^102102100102 is an apocalyptic number.

102102100102 is a deficient number, since it is larger than the sum of its proper divisors (51051050054).

102102100102 is an equidigital number, since it uses as much as digits as its factorization.

102102100102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51051050053.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 102102100102 its reverse (201001201201), we get a palindrome (303103301303).

The spelling of 102102100102 in words is "one hundred two billion, one hundred two million, one hundred thousand, one hundred two".