3118543081 has 2 divisors, whose sum is σ = 3118543082. Its totient is φ = 3118543080.

The previous prime is 3118543079. The next prime is 3118543111. The reversal of 3118543081 is 1803458113.

It is a happy number.

3118543081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1696121856 + 1422421225 = 41184^2 + 37715^2 .

It is a cyclic number.

It is not a de Polignac number, because 3118543081 - 2¹ = 3118543079 is a prime.

It is a super-2 number, since 2×3118543081² = 19450621896105945122, which contains 22 as substring.

Together with 3118543079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3118543061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1559271540 + 1559271541.

It is an arithmetic number, because the mean of its divisors is an integer number (1559271541).

Almost surely, 2^3118543081 is an apocalyptic number.

It is an amenable number.

3118543081 is a deficient number, since it is larger than the sum of its proper divisors (1).

3118543081 is an equidigital number, since it uses as much as digits as its factorization.

3118543081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 3118543081 is about 55843.9171351724. The cubic root of 3118543081 is about 1461.0012336871.

The spelling of 3118543081 in words is "three billion, one hundred eighteen million, five hundred forty-three thousand, eighty-one".