4123021 has 8 divisors (see below), whose sum is σ = 4839680. Its totient is φ = 3438288.

The previous prime is 4122997. The next prime is 4123037. The reversal of 4123021 is 1203214.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4123021 - 2⁷ = 4122893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4122992 and 4123010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4123121) 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, 7701 + ... + 8218.

It is an arithmetic number, because the mean of its divisors is an integer number (604960).

Almost surely, 2^4123021 is an apocalyptic number.

It is an amenable number.

4123021 is a deficient number, since it is larger than the sum of its proper divisors (716659).

4123021 is a wasteful number, since it uses less digits than its factorization.

4123021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15963.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 4123021 is about 2030.5223465897. The cubic root of 4123021 is about 160.3510650823.

Adding to 4123021 its reverse (1203214), we get a palindrome (5326235).

The spelling of 4123021 in words is "four million, one hundred twenty-three thousand, twenty-one".