121100002103 has 4 divisors (see below), whose sum is σ = 121147625568. Its totient is φ = 121052378640.

The previous prime is 121100002097. The next prime is 121100002123. The reversal of 121100002103 is 301200001121.

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 121100002103 - 2³⁶ = 52380525367 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 (121100002123) 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, 23807918 + ... + 23813003.

It is an arithmetic number, because the mean of its divisors is an integer number (30286906392).

Almost surely, 2^121100002103 is an apocalyptic number.

121100002103 is a deficient number, since it is larger than the sum of its proper divisors (47623465).

121100002103 is an equidigital number, since it uses as much as digits as its factorization.

121100002103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47623464.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 121100002103 its reverse (301200001121), we get a palindrome (422300003224).

The spelling of 121100002103 in words is "one hundred twenty-one billion, one hundred million, two thousand, one hundred three".