4120354121 has 4 divisors (see below), whose sum is σ = 4437304452. Its totient is φ = 3803403792.

The previous prime is 4120354061. The next prime is 4120354169. The reversal of 4120354121 is 1214530214.

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 2650705225 + 1469648896 = 51485^2 + 38336^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4120354121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4120354171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158475146 + ... + 158475171.

It is an arithmetic number, because the mean of its divisors is an integer number (1109326113).

Almost surely, 2^4120354121 is an apocalyptic number.

It is an amenable number.

4120354121 is a deficient number, since it is larger than the sum of its proper divisors (316950331).

4120354121 is a wasteful number, since it uses less digits than its factorization.

4120354121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316950330.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 4120354121 is about 64189.9845848244. The cubic root of 4120354121 is about 1603.1648452243.

Adding to 4120354121 its reverse (1214530214), we get a palindrome (5334884335).

The spelling of 4120354121 in words is "four billion, one hundred twenty million, three hundred fifty-four thousand, one hundred twenty-one".