40123211 has 8 divisors (see below), whose sum is σ = 41595120. Its totient is φ = 38657248.

The previous prime is 40123199. The next prime is 40123217. The reversal of 40123211 is 11232104.

40123211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40123211 - 2¹⁸ = 39861067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40123217) 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 in 7 ways as a sum of consecutive naturals, for example, 15845 + ... + 18201.

It is an arithmetic number, because the mean of its divisors is an integer number (5199390).

Almost surely, 2^40123211 is an apocalyptic number.

40123211 is a deficient number, since it is larger than the sum of its proper divisors (1471909).

40123211 is a wasteful number, since it uses less digits than its factorization.

40123211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2973.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 40123211 is about 6334.2885156898. The cubic root of 40123211 is about 342.3459758192.

Adding to 40123211 its reverse (11232104), we get a palindrome (51355315).

The spelling of 40123211 in words is "forty million, one hundred twenty-three thousand, two hundred eleven".