138823276032343 has 4 divisors (see below), whose sum is σ = 158655172608400. Its totient is φ = 118991379456288.

The previous prime is 138823276032319. The next prime is 138823276032349. The reversal of 138823276032343 is 343230672328831.

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 138823276032343 - 2²¹ = 138823273935191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138823276032349) 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, 9915948288018 + ... + 9915948288031.

It is an arithmetic number, because the mean of its divisors is an integer number (39663793152100).

Almost surely, 2^{138823276032343} is an apocalyptic number.

138823276032343 is a deficient number, since it is larger than the sum of its proper divisors (19831896576057).

138823276032343 is an equidigital number, since it uses as much as digits as its factorization.

138823276032343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19831896576056.

The product of its (nonzero) digits is 20901888, while the sum is 55.

The spelling of 138823276032343 in words is "one hundred thirty-eight trillion, eight hundred twenty-three billion, two hundred seventy-six million, thirty-two thousand, three hundred forty-three".