4131305421 has 8 divisors (see below), whose sum is σ = 5523417984. Its totient is φ = 2746698240.

The previous prime is 4131305419. The next prime is 4131305429. The reversal of 4131305421 is 1245031314.

It is a happy number.

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

It is not a de Polignac number, because 4131305421 - 2¹ = 4131305419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4131305391 and 4131305400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4131305429) 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, 1875060 + ... + 1877261.

It is an arithmetic number, because the mean of its divisors is an integer number (690427248).

Almost surely, 2^4131305421 is an apocalyptic number.

It is an amenable number.

4131305421 is a deficient number, since it is larger than the sum of its proper divisors (1392112563).

4131305421 is a wasteful number, since it uses less digits than its factorization.

4131305421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3752691.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 4131305421 is about 64275.2317848796. The cubic root of 4131305421 is about 1604.5839148127.

Adding to 4131305421 its reverse (1245031314), we get a palindrome (5376336735).

The spelling of 4131305421 in words is "four billion, one hundred thirty-one million, three hundred five thousand, four hundred twenty-one".