103124240121 has 48 divisors (see below), whose sum is σ = 167572193280. Its totient is φ = 56175910560.

The previous prime is 103124240111. The next prime is 103124240137. The reversal of 103124240121 is 121042421301.

It is not a de Polignac number, because 103124240121 - 2⁶ = 103124240057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (103124240111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 136440 + ... + 474198.

It is an arithmetic number, because the mean of its divisors is an integer number (3491087360).

Almost surely, 2^103124240121 is an apocalyptic number.

It is an amenable number.

103124240121 is a deficient number, since it is larger than the sum of its proper divisors (64447953159).

103124240121 is a wasteful number, since it uses less digits than its factorization.

103124240121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337874 (or 337867 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 103124240121 its reverse (121042421301), we get a palindrome (224166661422).

The spelling of 103124240121 in words is "one hundred three billion, one hundred twenty-four million, two hundred forty thousand, one hundred twenty-one".