3111882481 has 2 divisors, whose sum is σ = 3111882482. Its totient is φ = 3111882480.

The previous prime is 3111882421. The next prime is 3111882503. The reversal of 3111882481 is 1842881113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3023240256 + 88642225 = 54984^2 + 9415^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3111882481 is a prime.

It is a super-2 number, since 2×3111882481² = 19367625151109430722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3111882481.

It is not a weakly prime, because it can be changed into another prime (3111882401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1555941240 + 1555941241.

It is an arithmetic number, because the mean of its divisors is an integer number (1555941241).

Almost surely, 2^3111882481 is an apocalyptic number.

It is an amenable number.

3111882481 is a deficient number, since it is larger than the sum of its proper divisors (1).

3111882481 is an equidigital number, since it uses as much as digits as its factorization.

3111882481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12288, while the sum is 37.

The square root of 3111882481 is about 55784.2493989119. The cubic root of 3111882481 is about 1459.9603543685.

The spelling of 3111882481 in words is "three billion, one hundred eleven million, eight hundred eighty-two thousand, four hundred eighty-one".