102121131230103 has 16 divisors (see below), whose sum is σ = 138194192537216. Its totient is φ = 67064418257760.

The previous prime is 102121131230099. The next prime is 102121131230219. The reversal of 102121131230103 is 301032131121201.

It is not a de Polignac number, because 102121131230103 - 2² = 102121131230099 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102121131230103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102121131230303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93339813 + ... + 94427553.

It is an arithmetic number, because the mean of its divisors is an integer number (8637137033576).

Almost surely, 2^{102121131230103} is an apocalyptic number.

102121131230103 is a deficient number, since it is larger than the sum of its proper divisors (36073061307113).

102121131230103 is a wasteful number, since it uses less digits than its factorization.

102121131230103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554894.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 102121131230103 its reverse (301032131121201), we get a palindrome (403153262351304).

The spelling of 102121131230103 in words is "one hundred two trillion, one hundred twenty-one billion, one hundred thirty-one million, two hundred thirty thousand, one hundred three".