4024020121 has 8 divisors (see below), whose sum is σ = 4390304544. Its totient is φ = 3657813120.

The previous prime is 4024020107. The next prime is 4024020149. The reversal of 4024020121 is 1210204204.

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 4024020121 - 2²¹ = 4021922969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4024020095 and 4024020104.

It is not an unprimeable number, because it can be changed into a prime (4024020421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169446 + ... + 191728.

It is an arithmetic number, because the mean of its divisors is an integer number (548788068).

Almost surely, 2^4024020121 is an apocalyptic number.

It is an amenable number.

4024020121 is a deficient number, since it is larger than the sum of its proper divisors (366284423).

4024020121 is a wasteful number, since it uses less digits than its factorization.

4024020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38711.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 4024020121 is about 63435.1647038139. The cubic root of 4024020121 is about 1590.5721766255.

Adding to 4024020121 its reverse (1210204204), we get a palindrome (5234224325).

The spelling of 4024020121 in words is "four billion, twenty-four million, twenty thousand, one hundred twenty-one".