121202102002103 has 4 divisors (see below), whose sum is σ = 121365227308368. Its totient is φ = 121038976695840.

The previous prime is 121202102002099. The next prime is 121202102002139. The reversal of 121202102002103 is 301200201202121.

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

It is a cyclic number.

It is not a de Polignac number, because 121202102002103 - 2² = 121202102002099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121202102022103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81562652018 + ... + 81562653503.

It is an arithmetic number, because the mean of its divisors is an integer number (30341306827092).

Almost surely, 2^{121202102002103} is an apocalyptic number.

121202102002103 is a deficient number, since it is larger than the sum of its proper divisors (163125306265).

121202102002103 is an equidigital number, since it uses as much as digits as its factorization.

121202102002103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163125306264.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 121202102002103 its reverse (301200201202121), we get a palindrome (422402303204224).

The spelling of 121202102002103 in words is "one hundred twenty-one trillion, two hundred two billion, one hundred two million, two thousand, one hundred three".