232512421 has 2 divisors, whose sum is σ = 232512422. Its totient is φ = 232512420.

The previous prime is 232512361. The next prime is 232512437. The reversal of 232512421 is 124215232.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 228161025 + 4351396 = 15105^2 + 2086^2 .

It is a cyclic number.

It is not a de Polignac number, because 232512421 - 2¹¹ = 232510373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 232512392 and 232512401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232512521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116256210 + 116256211.

It is an arithmetic number, because the mean of its divisors is an integer number (116256211).

Almost surely, 2^232512421 is an apocalyptic number.

It is an amenable number.

232512421 is a deficient number, since it is larger than the sum of its proper divisors (1).

232512421 is an equidigital number, since it uses as much as digits as its factorization.

232512421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960, while the sum is 22.

The square root of 232512421 is about 15248.3579771725. The cubic root of 232512421 is about 614.9154231854.

Adding to 232512421 its reverse (124215232), we get a palindrome (356727653).

The spelling of 232512421 in words is "two hundred thirty-two million, five hundred twelve thousand, four hundred twenty-one".