121002002103 has 8 divisors (see below), whose sum is σ = 161406372208. Its totient is φ = 80632816704.

The previous prime is 121002002089. The next prime is 121002002167. The reversal of 121002002103 is 301200200121.

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

It is not a de Polignac number, because 121002002103 - 2⁴ = 121002002087 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 (121002002203) 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, 8788150 + ... + 8801907.

It is an arithmetic number, because the mean of its divisors is an integer number (20175796526).

Almost surely, 2^121002002103 is an apocalyptic number.

121002002103 is a deficient number, since it is larger than the sum of its proper divisors (40404370105).

121002002103 is a wasteful number, since it uses less digits than its factorization.

121002002103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17592353.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 121002002103 its reverse (301200200121), we get a palindrome (422202202224).

The spelling of 121002002103 in words is "one hundred twenty-one billion, two million, two thousand, one hundred three".