102002111020102 has 4 divisors (see below), whose sum is σ = 153003166530156. Its totient is φ = 51001055510050.

The previous prime is 102002111020099. The next prime is 102002111020109. The reversal of 102002111020102 is 201020111200201.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102002111020109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25500527755024 + ... + 25500527755027.

It is an arithmetic number, because the mean of its divisors is an integer number (38250791632539).

Almost surely, 2^{102002111020102} is an apocalyptic number.

102002111020102 is a deficient number, since it is larger than the sum of its proper divisors (51001055510054).

102002111020102 is an equidigital number, since it uses as much as digits as its factorization.

102002111020102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51001055510053.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102002111020102 its reverse (201020111200201), we get a palindrome (303022222220303).

The spelling of 102002111020102 in words is "one hundred two trillion, two billion, one hundred eleven million, twenty thousand, one hundred two".