4121544113 has 4 divisors (see below), whose sum is σ = 4122434928. Its totient is φ = 4120653300.

The previous prime is 4121544101. The next prime is 4121544137. The reversal of 4121544113 is 3114451214.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4121544113 - 2²⁸ = 3853108657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4121544613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 438431 + ... + 447732.

It is an arithmetic number, because the mean of its divisors is an integer number (1030608732).

Almost surely, 2^4121544113 is an apocalyptic number.

It is an amenable number.

4121544113 is a deficient number, since it is larger than the sum of its proper divisors (890815).

4121544113 is an equidigital number, since it uses as much as digits as its factorization.

4121544113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890814.

The product of its digits is 1920, while the sum is 26.

The square root of 4121544113 is about 64199.2532121675. The cubic root of 4121544113 is about 1603.3191660792.

Adding to 4121544113 its reverse (3114451214), we get a palindrome (7235995327).

The spelling of 4121544113 in words is "four billion, one hundred twenty-one million, five hundred forty-four thousand, one hundred thirteen".