4121004520 has 16 divisors (see below), whose sum is σ = 9272260260. Its totient is φ = 1648401792.

The previous prime is 4121004491. The next prime is 4121004533. The reversal of 4121004520 is 254001214.

4121004520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3768240996 + 352763524 = 61386^2 + 18782^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51512517 + ... + 51512596.

Almost surely, 2^4121004520 is an apocalyptic number.

4121004520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4121004520 is an abundant number, since it is smaller than the sum of its proper divisors (5151255740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4121004520 is a wasteful number, since it uses less digits than its factorization.

4121004520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103025124 (or 103025120 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 4121004520 is about 64195.0505880321. The cubic root of 4121004520 is about 1603.2491941195.

Adding to 4121004520 its reverse (254001214), we get a palindrome (4375005734).

The spelling of 4121004520 in words is "four billion, one hundred twenty-one million, four thousand, five hundred twenty".