4101421321 has 4 divisors (see below), whose sum is σ = 4101550852. Its totient is φ = 4101291792.

The previous prime is 4101421279. The next prime is 4101421327. The reversal of 4101421321 is 1231241014.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3279165696 + 822255625 = 57264^2 + 28675^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4101421321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4101421327) 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, 17911 + ... + 92323.

It is an arithmetic number, because the mean of its divisors is an integer number (1025387713).

Almost surely, 2^4101421321 is an apocalyptic number.

It is an amenable number.

4101421321 is a deficient number, since it is larger than the sum of its proper divisors (129531).

4101421321 is an equidigital number, since it uses as much as digits as its factorization.

4101421321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129530.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 4101421321 is about 64042.3400649914. The cubic root of 4101421321 is about 1600.7055899654.

Adding to 4101421321 its reverse (1231241014), we get a palindrome (5332662335).

The spelling of 4101421321 in words is "four billion, one hundred one million, four hundred twenty-one thousand, three hundred twenty-one".