43453113531 has 4 divisors (see below), whose sum is σ = 57937484712. Its totient is φ = 28968742352.

The previous prime is 43453113521. The next prime is 43453113533. The reversal of 43453113531 is 13531135434.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 43453113531 - 2⁵ = 43453113499 is a prime.

It is a super-2 number, since 2×43453113531² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43453113492 and 43453113501.

It is not an unprimeable number, because it can be changed into a prime (43453113533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7242185586 + ... + 7242185591.

It is an arithmetic number, because the mean of its divisors is an integer number (14484371178).

Almost surely, 2^43453113531 is an apocalyptic number.

43453113531 is a deficient number, since it is larger than the sum of its proper divisors (14484371181).

43453113531 is a wasteful number, since it uses less digits than its factorization.

43453113531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14484371180.

The product of its digits is 32400, while the sum is 33.

Adding to 43453113531 its reverse (13531135434), we get a palindrome (56984248965).

The spelling of 43453113531 in words is "forty-three billion, four hundred fifty-three million, one hundred thirteen thousand, five hundred thirty-one".