40120511 has 2 divisors, whose sum is σ = 40120512. Its totient is φ = 40120510.

The previous prime is 40120501. The next prime is 40120513. The reversal of 40120511 is 11502104.

40120511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40120511 is a prime.

It is a super-2 number, since 2×40120511² = 3219310805802242, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 40120513, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40120513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20060255 + 20060256.

It is an arithmetic number, because the mean of its divisors is an integer number (20060256).

Almost surely, 2^40120511 is an apocalyptic number.

40120511 is a deficient number, since it is larger than the sum of its proper divisors (1).

40120511 is an equidigital number, since it uses as much as digits as its factorization.

40120511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 40120511 is about 6334.0753863528. The cubic root of 40120511 is about 342.3382965163.

Adding to 40120511 its reverse (11502104), we get a palindrome (51622615).

The spelling of 40120511 in words is "forty million, one hundred twenty thousand, five hundred eleven".