124203124121 has 16 divisors (see below), whose sum is σ = 135715176960. Its totient is φ = 113352946560.

The previous prime is 124203124117. The next prime is 124203124151. The reversal of 124203124121 is 121421302421.

It is a cyclic number.

It is not a de Polignac number, because 124203124121 - 2² = 124203124117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124203124151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1567820 + ... + 1645133.

It is an arithmetic number, because the mean of its divisors is an integer number (8482198560).

Almost surely, 2^124203124121 is an apocalyptic number.

It is an amenable number.

124203124121 is a deficient number, since it is larger than the sum of its proper divisors (11512052839).

124203124121 is a wasteful number, since it uses less digits than its factorization.

124203124121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3213056.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 124203124121 its reverse (121421302421), we get a palindrome (245624426542).

The spelling of 124203124121 in words is "one hundred twenty-four billion, two hundred three million, one hundred twenty-four thousand, one hundred twenty-one".