43113232234421 has 2 divisors, whose sum is σ = 43113232234422. Its totient is φ = 43113232234420.

The previous prime is 43113232234381. The next prime is 43113232234433. The reversal of 43113232234421 is 12443223231134.

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., 39849739402225 + 3263492832196 = 6312665^2 + 1806514^2 .

It is a cyclic number.

It is not a de Polignac number, because 43113232234421 - 2¹⁰ = 43113232233397 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 (43113232239421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21556616117210 + 21556616117211.

It is an arithmetic number, because the mean of its divisors is an integer number (21556616117211).

Almost surely, 2^{43113232234421} is an apocalyptic number.

It is an amenable number.

43113232234421 is a deficient number, since it is larger than the sum of its proper divisors (1).

43113232234421 is an equidigital number, since it uses as much as digits as its factorization.

43113232234421 is an odious number, because the sum of its binary digits is odd.

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

Adding to 43113232234421 its reverse (12443223231134), we get a palindrome (55556455465555).

The spelling of 43113232234421 in words is "forty-three trillion, one hundred thirteen billion, two hundred thirty-two million, two hundred thirty-four thousand, four hundred twenty-one".