381123343 has 4 divisors (see below), whose sum is σ = 381316000. Its totient is φ = 380930688.

The previous prime is 381123341. The next prime is 381123359. The reversal of 381123343 is 343321183.

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 381123343 - 2¹ = 381123341 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 (381123341) 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, 93330 + ... + 97327.

It is an arithmetic number, because the mean of its divisors is an integer number (95329000).

Almost surely, 2^381123343 is an apocalyptic number.

381123343 is a deficient number, since it is larger than the sum of its proper divisors (192657).

381123343 is a wasteful number, since it uses less digits than its factorization.

381123343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192656.

The product of its digits is 5184, while the sum is 28.

The square root of 381123343 is about 19522.3805669288. The cubic root of 381123343 is about 725.0286745694.

The spelling of 381123343 in words is "three hundred eighty-one million, one hundred twenty-three thousand, three hundred forty-three".