4113521321 has 8 divisors (see below), whose sum is σ = 5062795584. Its totient is φ = 3254654160.

The previous prime is 4113521317. The next prime is 4113521329. The reversal of 4113521321 is 1231253114.

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

It is a cyclic number.

It is not a de Polignac number, because 4113521321 - 2² = 4113521317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4113521329) 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 7 ways as a sum of consecutive naturals, for example, 22601675 + ... + 22601856.

It is an arithmetic number, because the mean of its divisors is an integer number (632849448).

Almost surely, 2^4113521321 is an apocalyptic number.

It is an amenable number.

4113521321 is a deficient number, since it is larger than the sum of its proper divisors (949274263).

4113521321 is a wasteful number, since it uses less digits than its factorization.

4113521321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45203551.

The product of its digits is 720, while the sum is 23.

The square root of 4113521321 is about 64136.7392451472. The cubic root of 4113521321 is about 1602.2781766601.

Adding to 4113521321 its reverse (1231253114), we get a palindrome (5344774435).

The spelling of 4113521321 in words is "four billion, one hundred thirteen million, five hundred twenty-one thousand, three hundred twenty-one".