381100343 has 4 divisors (see below), whose sum is σ = 410415768. Its totient is φ = 351784920.

The previous prime is 381100327. The next prime is 381100351. The reversal of 381100343 is 343001183.

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 381100343 - 2⁴ = 381100327 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 (381102343) 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, 14657693 + ... + 14657718.

It is an arithmetic number, because the mean of its divisors is an integer number (102603942).

Almost surely, 2^381100343 is an apocalyptic number.

381100343 is a deficient number, since it is larger than the sum of its proper divisors (29315425).

381100343 is a wasteful number, since it uses less digits than its factorization.

381100343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29315424.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 381100343 is about 19521.7914905369. The cubic root of 381100343 is about 725.0140896192.

The spelling of 381100343 in words is "three hundred eighty-one million, one hundred thousand, three hundred forty-three".