20038738423343 has 4 divisors (see below), whose sum is σ = 20046349036848. Its totient is φ = 20031127809840.

The previous prime is 20038738423321. The next prime is 20038738423351. The reversal of 20038738423343 is 34332483783002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20038738423343 - 2⁸ = 20038738423087 is a prime.

It is a super-5 number, since 5×20038738423343⁵ (a number of 68 digits) contains 55555 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20038738423291 and 20038738423300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20038738423243) 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 in 3 ways as a sum of consecutive naturals, for example, 3805302803 + ... + 3805308068.

It is an arithmetic number, because the mean of its divisors is an integer number (5011587259212).

Almost surely, 2^{20038738423343} is an apocalyptic number.

20038738423343 is a deficient number, since it is larger than the sum of its proper divisors (7610613505).

20038738423343 is an equidigital number, since it uses as much as digits as its factorization.

20038738423343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7610613504.

The product of its (nonzero) digits is 6967296, while the sum is 50.

The spelling of 20038738423343 in words is "twenty trillion, thirty-eight billion, seven hundred thirty-eight million, four hundred twenty-three thousand, three hundred forty-three".