40035344123 has 2 divisors, whose sum is σ = 40035344124. Its totient is φ = 40035344122.

The previous prime is 40035344119. The next prime is 40035344147. The reversal of 40035344123 is 32144353004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40035344123 - 2² = 40035344119 is a prime.

It is not a weakly prime, because it can be changed into another prime (40035344183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20017672061 + 20017672062.

It is an arithmetic number, because the mean of its divisors is an integer number (20017672062).

Almost surely, 2^40035344123 is an apocalyptic number.

40035344123 is a deficient number, since it is larger than the sum of its proper divisors (1).

40035344123 is an equidigital number, since it uses as much as digits as its factorization.

40035344123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 40035344123 its reverse (32144353004), we get a palindrome (72179697127).

The spelling of 40035344123 in words is "forty billion, thirty-five million, three hundred forty-four thousand, one hundred twenty-three".