4320996121 has 8 divisors (see below), whose sum is σ = 4659538184. Its totient is φ = 3983333760.

The previous prime is 4320996107. The next prime is 4320996149. The reversal of 4320996121 is 1216990234.

It can be written as a sum of positive squares in 4 ways, for example, as 1220733721 + 3100262400 = 34939^2 + 55680^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4320996121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4320996181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209700 + ... + 229381.

It is an arithmetic number, because the mean of its divisors is an integer number (582442273).

Almost surely, 2^4320996121 is an apocalyptic number.

It is an amenable number.

4320996121 is a deficient number, since it is larger than the sum of its proper divisors (338542063).

4320996121 is a wasteful number, since it uses less digits than its factorization.

4320996121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439851.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 4320996121 is about 65734.2842130345. The cubic root of 4320996121 is about 1628.7757403548.

The spelling of 4320996121 in words is "four billion, three hundred twenty million, nine hundred ninety-six thousand, one hundred twenty-one".