121002103 has 8 divisors (see below), whose sum is σ = 126394848. Its totient is φ = 115620384.

The previous prime is 121002061. The next prime is 121002109. The reversal of 121002103 is 301200121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121002103 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 121002103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121002109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26325 + ... + 30577.

It is an arithmetic number, because the mean of its divisors is an integer number (15799356).

Almost surely, 2^121002103 is an apocalyptic number.

121002103 is a deficient number, since it is larger than the sum of its proper divisors (5392745).

121002103 is a wasteful number, since it uses less digits than its factorization.

121002103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5513.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 121002103 is about 11000.0955904937. The cubic root of 121002103 is about 494.6116097688.

Adding to 121002103 its reverse (301200121), we get a palindrome (422202224).

The spelling of 121002103 in words is "one hundred twenty-one million, two thousand, one hundred three".