5120133421 has 8 divisors (see below), whose sum is σ = 5575946040. Its totient is φ = 4673171712.

The previous prime is 5120133391. The next prime is 5120133437. The reversal of 5120133421 is 1243310215.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 629257225 + 4490876196 = 25085^2 + 67014^2 .

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 5120133421 - 2¹⁹ = 5119609133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5120133392 and 5120133401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5120133461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2211520 + ... + 2213833.

It is an arithmetic number, because the mean of its divisors is an integer number (696993255).

Almost surely, 2^5120133421 is an apocalyptic number.

It is an amenable number.

5120133421 is a deficient number, since it is larger than the sum of its proper divisors (455812619).

5120133421 is a wasteful number, since it uses less digits than its factorization.

5120133421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4425455.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 5120133421 is about 71555.1075814997. The cubic root of 5120133421 is about 1723.5627230846.

Adding to 5120133421 its reverse (1243310215), we get a palindrome (6363443636).

The spelling of 5120133421 in words is "five billion, one hundred twenty million, one hundred thirty-three thousand, four hundred twenty-one".