124112121 has 32 divisors (see below), whose sum is σ = 201369600. Its totient is φ = 66375936.

The previous prime is 124112119. The next prime is 124112129. The reversal of 124112121 is 121211421.

It is not a de Polignac number, because 124112121 - 2¹ = 124112119 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 124112121.

It is not an unprimeable number, because it can be changed into a prime (124112129) 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 31 ways as a sum of consecutive naturals, for example, 70170 + ... + 71916.

It is an arithmetic number, because the mean of its divisors is an integer number (6292800).

Almost surely, 2^124112121 is an apocalyptic number.

It is an amenable number.

124112121 is a deficient number, since it is larger than the sum of its proper divisors (77257479).

124112121 is a wasteful number, since it uses less digits than its factorization.

124112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973.

The product of its digits is 32, while the sum is 15.

The square root of 124112121 is about 11140.5619696674. The cubic root of 124112121 is about 498.8133472719.

Adding to 124112121 its reverse (121211421), we get a palindrome (245323542).

The spelling of 124112121 in words is "one hundred twenty-four million, one hundred twelve thousand, one hundred twenty-one".