43273117313 has 4 divisors (see below), whose sum is σ = 45818594820. Its totient is φ = 40727639808.

The previous prime is 43273117271. The next prime is 43273117319. The reversal of 43273117313 is 31371137234.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13612355584 + 29660761729 = 116672^2 + 172223^2 .

It is a cyclic number.

It is not a de Polignac number, because 43273117313 - 2¹² = 43273113217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43273117319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1272738728 + ... + 1272738761.

It is an arithmetic number, because the mean of its divisors is an integer number (11454648705).

Almost surely, 2^43273117313 is an apocalyptic number.

It is an amenable number.

43273117313 is a deficient number, since it is larger than the sum of its proper divisors (2545477507).

43273117313 is a wasteful number, since it uses less digits than its factorization.

43273117313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2545477506.

The product of its digits is 31752, while the sum is 35.

The spelling of 43273117313 in words is "forty-three billion, two hundred seventy-three million, one hundred seventeen thousand, three hundred thirteen".