40216123 has 2 divisors, whose sum is σ = 40216124. Its totient is φ = 40216122.

The previous prime is 40216097. The next prime is 40216133. The reversal of 40216123 is 32161204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40216123 - 2⁵ = 40216091 is a prime.

It is a super-2 number, since 2×40216123² = 3234673098302258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40216123.

It is not a weakly prime, because it can be changed into another prime (40216133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20108061 + 20108062.

It is an arithmetic number, because the mean of its divisors is an integer number (20108062).

Almost surely, 2^40216123 is an apocalyptic number.

40216123 is a deficient number, since it is larger than the sum of its proper divisors (1).

40216123 is an equidigital number, since it uses as much as digits as its factorization.

40216123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 40216123 is about 6341.6183265788. The cubic root of 40216123 is about 342.6100252124.

Adding to 40216123 its reverse (32161204), we get a palindrome (72377327).

The spelling of 40216123 in words is "forty million, two hundred sixteen thousand, one hundred twenty-three".