381343223 has 2 divisors, whose sum is σ = 381343224. Its totient is φ = 381343222.

The previous prime is 381343189. The next prime is 381343241. The reversal of 381343223 is 322343183.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 381343223 - 2²⁶ = 314234359 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381343273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190671611 + 190671612.

It is an arithmetic number, because the mean of its divisors is an integer number (190671612).

Almost surely, 2^381343223 is an apocalyptic number.

381343223 is a deficient number, since it is larger than the sum of its proper divisors (1).

381343223 is an equidigital number, since it uses as much as digits as its factorization.

381343223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 29.

The square root of 381343223 is about 19528.0112402671. The cubic root of 381343223 is about 725.1680770839.

The spelling of 381343223 in words is "three hundred eighty-one million, three hundred forty-three thousand, two hundred twenty-three".