234304431013421 has 2 divisors, whose sum is σ = 234304431013422. Its totient is φ = 234304431013420.

The previous prime is 234304431013409. The next prime is 234304431013439. The reversal of 234304431013421 is 124310134403432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 234181502940100 + 122928073321 = 15302990^2 + 350611^2 .

It is a cyclic number.

It is not a de Polignac number, because 234304431013421 - 2²⁶ = 234304363904557 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234304431013451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117152215506710 + 117152215506711.

It is an arithmetic number, because the mean of its divisors is an integer number (117152215506711).

Almost surely, 2^{234304431013421} is an apocalyptic number.

It is an amenable number.

234304431013421 is a deficient number, since it is larger than the sum of its proper divisors (1).

234304431013421 is an equidigital number, since it uses as much as digits as its factorization.

234304431013421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 234304431013421 its reverse (124310134403432), we get a palindrome (358614565416853).

The spelling of 234304431013421 in words is "two hundred thirty-four trillion, three hundred four billion, four hundred thirty-one million, thirteen thousand, four hundred twenty-one".