4200120321 has 16 divisors (see below), whose sum is σ = 5930870784. Its totient is φ = 2638359504.

The previous prime is 4200120311. The next prime is 4200120341. The reversal of 4200120321 is 1230210024.

It is not a de Polignac number, because 4200120321 - 2¹⁴ = 4200103937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4200120321.

It is not an unprimeable number, because it can be changed into a prime (4200120311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 449641 + ... + 458886.

It is an arithmetic number, because the mean of its divisors is an integer number (370679424).

Almost surely, 2^4200120321 is an apocalyptic number.

It is an amenable number.

4200120321 is a deficient number, since it is larger than the sum of its proper divisors (1730750463).

4200120321 is a wasteful number, since it uses less digits than its factorization.

4200120321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908620.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 4200120321 is about 64808.3352740988. The cubic root of 4200120321 is about 1613.4440529685. Note that the first 3 decimals are identical.

Adding to 4200120321 its reverse (1230210024), we get a palindrome (5430330345).

The spelling of 4200120321 in words is "four billion, two hundred million, one hundred twenty thousand, three hundred twenty-one".