43381178313 has 16 divisors (see below), whose sum is σ = 63121291200. Its totient is φ = 26282708480.

The previous prime is 43381178299. The next prime is 43381178339. The reversal of 43381178313 is 31387118334.

It is a cyclic number.

It is not a de Polignac number, because 43381178313 - 2²² = 43376984009 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (43381178363) 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 15 ways as a sum of consecutive naturals, for example, 123408 + ... + 319361.

It is an arithmetic number, because the mean of its divisors is an integer number (3945080700).

Almost surely, 2^43381178313 is an apocalyptic number.

It is an amenable number.

43381178313 is a deficient number, since it is larger than the sum of its proper divisors (19740112887).

43381178313 is a wasteful number, since it uses less digits than its factorization.

43381178313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445752.

The product of its digits is 145152, while the sum is 42.

The spelling of 43381178313 in words is "forty-three billion, three hundred eighty-one million, one hundred seventy-eight thousand, three hundred thirteen".