123828843378371 has 4 divisors (see below), whose sum is σ = 126463499620512. Its totient is φ = 121194187136232.

The previous prime is 123828843378337. The next prime is 123828843378379. The reversal of 123828843378371 is 173873348828321.

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 123828843378371 - 2¹⁰ = 123828843377347 is a prime.

It is a super-2 number, since 2×123828843378371² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123828843378379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1317328121000 + ... + 1317328121093.

It is an arithmetic number, because the mean of its divisors is an integer number (31615874905128).

Almost surely, 2^{123828843378371} is an apocalyptic number.

123828843378371 is a deficient number, since it is larger than the sum of its proper divisors (2634656242141).

123828843378371 is an equidigital number, since it uses as much as digits as its factorization.

123828843378371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2634656242140.

The product of its digits is 260112384, while the sum is 68.

The spelling of 123828843378371 in words is "one hundred twenty-three trillion, eight hundred twenty-eight billion, eight hundred forty-three million, three hundred seventy-eight thousand, three hundred seventy-one".