43381081353 has 16 divisors (see below), whose sum is σ = 60237576000. Its totient is φ = 27736040640.

The previous prime is 43381081343. The next prime is 43381081441. The reversal of 43381081353 is 35318018334.

It is a de Polignac number, because none of the positive numbers 2^k-43381081353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43381081343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1660303 + ... + 1686228.

It is an arithmetic number, because the mean of its divisors is an integer number (3764848500).

Almost surely, 2^43381081353 is an apocalyptic number.

It is an amenable number.

43381081353 is a deficient number, since it is larger than the sum of its proper divisors (16856494647).

43381081353 is a wasteful number, since it uses less digits than its factorization.

43381081353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3346712.

The product of its (nonzero) digits is 103680, while the sum is 39.

Adding to 43381081353 its reverse (35318018334), we get a palindrome (78699099687).

The spelling of 43381081353 in words is "forty-three billion, three hundred eighty-one million, eighty-one thousand, three hundred fifty-three".