230331421 has 2 divisors, whose sum is σ = 230331422. Its totient is φ = 230331420.

The previous prime is 230331389. The next prime is 230331449. The reversal of 230331421 is 124133032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 174530521 + 55800900 = 13211^2 + 7470^2 .

It is a cyclic number.

It is not a de Polignac number, because 230331421 - 2⁵ = 230331389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230331121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115165710 + 115165711.

It is an arithmetic number, because the mean of its divisors is an integer number (115165711).

Almost surely, 2^230331421 is an apocalyptic number.

It is an amenable number.

230331421 is a deficient number, since it is larger than the sum of its proper divisors (1).

230331421 is an equidigital number, since it uses as much as digits as its factorization.

230331421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 230331421 is about 15176.6735815198. The cubic root of 230331421 is about 612.9867149547.

Adding to 230331421 its reverse (124133032), we get a palindrome (354464453).

The spelling of 230331421 in words is "two hundred thirty million, three hundred thirty-one thousand, four hundred twenty-one".