230320381 has 2 divisors, whose sum is σ = 230320382. Its totient is φ = 230320380.

The previous prime is 230320373. The next prime is 230320397. The reversal of 230320381 is 183023032.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145588356 + 84732025 = 12066^2 + 9205^2 .

It is a cyclic number.

It is not a de Polignac number, because 230320381 - 2³ = 230320373 is a prime.

It is a super-2 number, since 2×230320381² = 106094955807970322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230320681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115160190 + 115160191.

It is an arithmetic number, because the mean of its divisors is an integer number (115160191).

Almost surely, 2^230320381 is an apocalyptic number.

It is an amenable number.

230320381 is a deficient number, since it is larger than the sum of its proper divisors (1).

230320381 is an equidigital number, since it uses as much as digits as its factorization.

230320381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 230320381 is about 15176.3098610960. The cubic root of 230320381 is about 612.9769211231.

The spelling of 230320381 in words is "two hundred thirty million, three hundred twenty thousand, three hundred eighty-one".