43143421105403 has 16 divisors (see below), whose sum is σ = 43517341929600. Its totient is φ = 42771410330880.

The previous prime is 43143421105397. The next prime is 43143421105417. The reversal of 43143421105403 is 30450112434134.

It is a cyclic number.

It is not a de Polignac number, because 43143421105403 - 2¹⁰ = 43143421104379 is a prime.

It is a super-2 number, since 2×43143421105403² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43143421105003) 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, 57891275 + ... + 58631787.

It is an arithmetic number, because the mean of its divisors is an integer number (2719833870600).

Almost surely, 2^{43143421105403} is an apocalyptic number.

43143421105403 is a deficient number, since it is larger than the sum of its proper divisors (373920824197).

43143421105403 is a wasteful number, since it uses less digits than its factorization.

43143421105403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741802.

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 43143421105403 its reverse (30450112434134), we get a palindrome (73593533539537).

The spelling of 43143421105403 in words is "forty-three trillion, one hundred forty-three billion, four hundred twenty-one million, one hundred five thousand, four hundred three".