13043431443331 has 16 divisors (see below), whose sum is σ = 13293954000000. Its totient is φ = 12793901605056.

The previous prime is 13043431443319. The next prime is 13043431443347. The reversal of 13043431443331 is 13334413434031.

13043431443331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13043431443331 - 2⁵ = 13043431443299 is a prime.

It is a super-2 number, since 2×13043431443331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13043431447331) 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, 143891740 + ... + 143982358.

It is an arithmetic number, because the mean of its divisors is an integer number (830872125000).

Almost surely, 2^{13043431443331} is an apocalyptic number.

13043431443331 is a deficient number, since it is larger than the sum of its proper divisors (250522556669).

13043431443331 is an equidigital number, since it uses as much as digits as its factorization.

13043431443331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96066.

The product of its (nonzero) digits is 186624, while the sum is 37.

Adding to 13043431443331 its reverse (13334413434031), we get a palindrome (26377844877362).

The spelling of 13043431443331 in words is "thirteen trillion, forty-three billion, four hundred thirty-one million, four hundred forty-three thousand, three hundred thirty-one".