121042103 has 48 divisors (see below), whose sum is σ = 162983520. Its totient is φ = 88833024.

The previous prime is 121042093. The next prime is 121042111. The reversal of 121042103 is 301240121.

It is not a de Polignac number, because 121042103 - 2¹⁴ = 121025719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121042153) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 883451 + ... + 883587.

It is an arithmetic number, because the mean of its divisors is an integer number (3395490).

Almost surely, 2^121042103 is an apocalyptic number.

121042103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121042103 is a deficient number, since it is larger than the sum of its proper divisors (41941417).

121042103 is a wasteful number, since it uses less digits than its factorization.

121042103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256 (or 249 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 121042103 is about 11001.9136062778. The cubic root of 121042103 is about 494.6661054738. Note that the first 3 decimals are identical.

Adding to 121042103 its reverse (301240121), we get a palindrome (422282224).

The spelling of 121042103 in words is "one hundred twenty-one million, forty-two thousand, one hundred three".