5111324681 has 2 divisors, whose sum is σ = 5111324682. Its totient is φ = 5111324680.

The previous prime is 5111324641. The next prime is 5111324689. The reversal of 5111324681 is 1864231115.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3752665081 + 1358659600 = 61259^2 + 36860^2 .

It is a cyclic number.

It is not a de Polignac number, because 5111324681 - 2¹⁴ = 5111308297 is a prime.

It is a super-2 number, since 2×5111324681² = 52251279989199503522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5111324689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2555662340 + 2555662341.

It is an arithmetic number, because the mean of its divisors is an integer number (2555662341).

Almost surely, 2^5111324681 is an apocalyptic number.

It is an amenable number.

5111324681 is a deficient number, since it is larger than the sum of its proper divisors (1).

5111324681 is an equidigital number, since it uses as much as digits as its factorization.

5111324681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 32.

The square root of 5111324681 is about 71493.5289449332. The cubic root of 5111324681 is about 1722.5737429380.

Adding to 5111324681 its reverse (1864231115), we get a palindrome (6975555796).

The spelling of 5111324681 in words is "five billion, one hundred eleven million, three hundred twenty-four thousand, six hundred eighty-one".