138420071303 has 4 divisors (see below), whose sum is σ = 143193177240. Its totient is φ = 133646965368.

The previous prime is 138420071291. The next prime is 138420071311. The reversal of 138420071303 is 303170024831.

138420071303 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 303170024831 = 263 ⋅1152737737.

It is a cyclic number.

It is not a de Polignac number, because 138420071303 - 2⁸ = 138420071047 is a prime.

It is a super-2 number, since 2×138420071303² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 138420071303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138420071393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2386552925 + ... + 2386552982.

It is an arithmetic number, because the mean of its divisors is an integer number (35798294310).

Almost surely, 2^138420071303 is an apocalyptic number.

138420071303 is a deficient number, since it is larger than the sum of its proper divisors (4773105937).

138420071303 is an equidigital number, since it uses as much as digits as its factorization.

138420071303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4773105936.

The product of its (nonzero) digits is 12096, while the sum is 32.

The spelling of 138420071303 in words is "one hundred thirty-eight billion, four hundred twenty million, seventy-one thousand, three hundred three".