124011021 has 8 divisors (see below), whose sum is σ = 166272480. Its totient is φ = 82211792.

The previous prime is 124011007. The next prime is 124011049. The reversal of 124011021 is 120110421.

It is a happy number.

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 124011021 - 2¹³ = 124002829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 124010988 and 124011006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124011001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114930 + ... + 116003.

It is an arithmetic number, because the mean of its divisors is an integer number (20784060).

Almost surely, 2^124011021 is an apocalyptic number.

It is an amenable number.

124011021 is a deficient number, since it is larger than the sum of its proper divisors (42261459).

124011021 is a wasteful number, since it uses less digits than its factorization.

124011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231115.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 124011021 is about 11136.0235721733. The cubic root of 124011021 is about 498.6778683506.

Adding to 124011021 its reverse (120110421), we get a palindrome (244121442).

The spelling of 124011021 in words is "one hundred twenty-four million, eleven thousand, twenty-one".