3981119543 has 2 divisors, whose sum is σ = 3981119544. Its totient is φ = 3981119542.

The previous prime is 3981119531. The next prime is 3981119587. The reversal of 3981119543 is 3459111893.

3981119543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (3981119587) can be obtained adding 3981119543 to its sum of digits (44).

It is a weak prime.

It is an emirp because it is prime and its reverse (3459111893) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3981119543 - 2³⁰ = 2907377719 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3981119494 and 3981119503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3981119503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1990559771 + 1990559772.

It is an arithmetic number, because the mean of its divisors is an integer number (1990559772).

Almost surely, 2^3981119543 is an apocalyptic number.

3981119543 is a deficient number, since it is larger than the sum of its proper divisors (1).

3981119543 is an equidigital number, since it uses as much as digits as its factorization.

3981119543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 44.

The square root of 3981119543 is about 63096.1135332439. The cubic root of 3981119543 is about 1584.8995405816.

The spelling of 3981119543 in words is "three billion, nine hundred eighty-one million, one hundred nineteen thousand, five hundred forty-three".