541818818131 has 2 divisors, whose sum is σ = 541818818132. Its totient is φ = 541818818130.

The previous prime is 541818818113. The next prime is 541818818147. The reversal of 541818818131 is 131818818145.

Together with previous prime (541818818113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 541818818131 - 2²⁷ = 541684600403 is a prime.

It is a super-2 number, since 2×541818818131² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (541818816131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270909409065 + 270909409066.

It is an arithmetic number, because the mean of its divisors is an integer number (270909409066).

Almost surely, 2^541818818131 is an apocalyptic number.

541818818131 is a deficient number, since it is larger than the sum of its proper divisors (1).

541818818131 is an equidigital number, since it uses as much as digits as its factorization.

541818818131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 245760, while the sum is 49.

The spelling of 541818818131 in words is "five hundred forty-one billion, eight hundred eighteen million, eight hundred eighteen thousand, one hundred thirty-one".