43215342131 has 8 divisors (see below), whose sum is σ = 46543203840. Its totient is φ = 39887995392.

The previous prime is 43215342067. The next prime is 43215342139. The reversal of 43215342131 is 13124351234.

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 43215342131 - 2⁶ = 43215342067 is a prime.

It is a super-2 number, since 2×43215342131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43215342094 and 43215342103.

It is not an unprimeable number, because it can be changed into a prime (43215342139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55310 + ... + 299148.

It is an arithmetic number, because the mean of its divisors is an integer number (5817900480).

Almost surely, 2^43215342131 is an apocalyptic number.

43215342131 is a deficient number, since it is larger than the sum of its proper divisors (3327861709).

43215342131 is a wasteful number, since it uses less digits than its factorization.

43215342131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257485.

The product of its digits is 8640, while the sum is 29.

Adding to 43215342131 its reverse (13124351234), we get a palindrome (56339693365).

The spelling of 43215342131 in words is "forty-three billion, two hundred fifteen million, three hundred forty-two thousand, one hundred thirty-one".