4023214121 has 4 divisors (see below), whose sum is σ = 4024541892. Its totient is φ = 4021886352.

The previous prime is 4023214099. The next prime is 4023214127. The reversal of 4023214121 is 1214123204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1876189225 + 2147024896 = 43315^2 + 46336^2 .

It is a cyclic number.

It is not a de Polignac number, because 4023214121 - 2²² = 4019019817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4023214093 and 4023214102.

It is not an unprimeable number, because it can be changed into a prime (4023214127) 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 3 ways as a sum of consecutive naturals, for example, 659330 + ... + 665403.

It is an arithmetic number, because the mean of its divisors is an integer number (1006135473).

Almost surely, 2^4023214121 is an apocalyptic number.

It is an amenable number.

4023214121 is a deficient number, since it is larger than the sum of its proper divisors (1327771).

4023214121 is a wasteful number, since it uses less digits than its factorization.

4023214121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327770.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 4023214121 is about 63428.8114424352. The cubic root of 4023214121 is about 1590.4659738118.

Adding to 4023214121 its reverse (1214123204), we get a palindrome (5237337325).

The spelling of 4023214121 in words is "four billion, twenty-three million, two hundred fourteen thousand, one hundred twenty-one".