121121103 has 8 divisors (see below), whose sum is σ = 161594928. Its totient is φ = 80697344.

The previous prime is 121121083. The next prime is 121121113. The reversal of 121121103 is 301121121.

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

It is a cyclic number.

It is not a de Polignac number, because 121121103 - 2¹⁷ = 120990031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121121113) 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, 6450 + ... + 16847.

It is an arithmetic number, because the mean of its divisors is an integer number (20199366).

Almost surely, 2^121121103 is an apocalyptic number.

121121103 is a deficient number, since it is larger than the sum of its proper divisors (40473825).

121121103 is a wasteful number, since it uses less digits than its factorization.

121121103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25033.

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

The square root of 121121103 is about 11005.5033051651. The cubic root of 121121103 is about 494.7736992303.

Adding to 121121103 its reverse (301121121), we get a palindrome (422242224).

The spelling of 121121103 in words is "one hundred twenty-one million, one hundred twenty-one thousand, one hundred three".