43105253013 has 36 divisors (see below), whose sum is σ = 65890650540. Its totient is φ = 27150619392.

The previous prime is 43105253003. The next prime is 43105253029. The reversal of 43105253013 is 31035250134.

It can be written as a sum of positive squares in 2 ways, for example, as 34932731409 + 8172521604 = 186903^2 + 90402^2 .

It is not a de Polignac number, because 43105253013 - 2⁴ = 43105252997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43105253003) 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 35 ways as a sum of consecutive naturals, for example, 1194093 + ... + 1229661.

Almost surely, 2^43105253013 is an apocalyptic number.

It is an amenable number.

43105253013 is a deficient number, since it is larger than the sum of its proper divisors (22785397527).

43105253013 is a wasteful number, since it uses less digits than its factorization.

43105253013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35986 (or 35964 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The spelling of 43105253013 in words is "forty-three billion, one hundred five million, two hundred fifty-three thousand, thirteen".