40120402101239 has 2 divisors, whose sum is σ = 40120402101240. Its totient is φ = 40120402101238.

The previous prime is 40120402101203. The next prime is 40120402101257. The reversal of 40120402101239 is 93210120402104.

40120402101239 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 not a de Polignac number, because 40120402101239 - 2¹² = 40120402097143 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40120402104239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20060201050619 + 20060201050620.

It is an arithmetic number, because the mean of its divisors is an integer number (20060201050620).

Almost surely, 2^{40120402101239} is an apocalyptic number.

40120402101239 is a deficient number, since it is larger than the sum of its proper divisors (1).

40120402101239 is an equidigital number, since it uses as much as digits as its factorization.

40120402101239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 40120402101239 in words is "forty trillion, one hundred twenty billion, four hundred two million, one hundred one thousand, two hundred thirty-nine".