238000331 has 2 divisors, whose sum is σ = 238000332. Its totient is φ = 238000330.

The previous prime is 238000319. The next prime is 238000333. The reversal of 238000331 is 133000832.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 238000331 - 2¹⁸ = 237738187 is a prime.

It is a super-2 number, since 2×238000331² = 113288315112219122, which contains 22 as substring.

Together with 238000333, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (238000333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119000165 + 119000166.

It is an arithmetic number, because the mean of its divisors is an integer number (119000166).

Almost surely, 2^238000331 is an apocalyptic number.

238000331 is a deficient number, since it is larger than the sum of its proper divisors (1).

238000331 is an equidigital number, since it uses as much as digits as its factorization.

238000331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 238000331 is about 15427.2593483094. The cubic root of 238000331 is about 619.7157307650.

The spelling of 238000331 in words is "two hundred thirty-eight million, three hundred thirty-one", and thus it is an aban number.