43135321013 has 8 divisors (see below), whose sum is σ = 43381889280. Its totient is φ = 42888815200.

The previous prime is 43135321003. The next prime is 43135321069. The reversal of 43135321013 is 31012353134.

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 43135321013 - 2⁸ = 43135320757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43135321003) 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, 2748956 + ... + 2764602.

It is an arithmetic number, because the mean of its divisors is an integer number (5422736160).

Almost surely, 2^43135321013 is an apocalyptic number.

It is an amenable number.

43135321013 is a deficient number, since it is larger than the sum of its proper divisors (246568267).

43135321013 is a wasteful number, since it uses less digits than its factorization.

43135321013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31227.

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 43135321013 its reverse (31012353134), we get a palindrome (74147674147).

The spelling of 43135321013 in words is "forty-three billion, one hundred thirty-five million, three hundred twenty-one thousand, thirteen".