230021279 has 2 divisors, whose sum is σ = 230021280. Its totient is φ = 230021278.

The previous prime is 230021227. The next prime is 230021293. The reversal of 230021279 is 972120032.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 230021279 - 2¹⁶ = 229955743 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230321279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115010639 + 115010640.

It is an arithmetic number, because the mean of its divisors is an integer number (115010640).

Almost surely, 2^230021279 is an apocalyptic number.

230021279 is a deficient number, since it is larger than the sum of its proper divisors (1).

230021279 is an equidigital number, since it uses as much as digits as its factorization.

230021279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 230021279 is about 15166.4524197322. The cubic root of 230021279 is about 612.7114618462.

The spelling of 230021279 in words is "two hundred thirty million, twenty-one thousand, two hundred seventy-nine".