4121305513 has 4 divisors (see below), whose sum is σ = 4438329028. Its totient is φ = 3804282000.

The previous prime is 4121305499. The next prime is 4121305519. The reversal of 4121305513 is 3155031214.

It is a happy number.

4121305513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3155031214 = 2 ⋅1577515607.

It can be written as a sum of positive squares in 2 ways, for example, as 2837373289 + 1283932224 = 53267^2 + 35832^2 .

It is a cyclic number.

It is not a de Polignac number, because 4121305513 - 2⁵ = 4121305481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4121305519) 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, 158511738 + ... + 158511763.

It is an arithmetic number, because the mean of its divisors is an integer number (1109582257).

Almost surely, 2^4121305513 is an apocalyptic number.

It is an amenable number.

4121305513 is a deficient number, since it is larger than the sum of its proper divisors (317023515).

4121305513 is a wasteful number, since it uses less digits than its factorization.

4121305513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317023514.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 4121305513 is about 64197.3949082048. The cubic root of 4121305513 is about 1603.2882262725.

Adding to 4121305513 its reverse (3155031214), we get a palindrome (7276336727).

The spelling of 4121305513 in words is "four billion, one hundred twenty-one million, three hundred five thousand, five hundred thirteen".