405018011 has 2 divisors, whose sum is σ = 405018012. Its totient is φ = 405018010.

The previous prime is 405018001. The next prime is 405018059. The reversal of 405018011 is 110810504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 405018011 - 2¹⁸ = 404755867 is a prime.

It is a super-2 number, since 2×405018011² = 328079178468792242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (405018001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202509005 + 202509006.

It is an arithmetic number, because the mean of its divisors is an integer number (202509006).

Almost surely, 2^405018011 is an apocalyptic number.

405018011 is a deficient number, since it is larger than the sum of its proper divisors (1).

405018011 is an equidigital number, since it uses as much as digits as its factorization.

405018011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 405018011 is about 20125.0592794158. The cubic root of 405018011 is about 739.8745897775.

Adding to 405018011 its reverse (110810504), we get a palindrome (515828515).

The spelling of 405018011 in words is "four hundred five million, eighteen thousand, eleven".