243414114421 has 2 divisors, whose sum is σ = 243414114422. Its totient is φ = 243414114420.

The previous prime is 243414114409. The next prime is 243414114443. The reversal of 243414114421 is 124411414342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222760400625 + 20653713796 = 471975^2 + 143714^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243414114421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243414114481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121707057210 + 121707057211.

It is an arithmetic number, because the mean of its divisors is an integer number (121707057211).

Almost surely, 2^243414114421 is an apocalyptic number.

It is an amenable number.

243414114421 is a deficient number, since it is larger than the sum of its proper divisors (1).

243414114421 is an equidigital number, since it uses as much as digits as its factorization.

243414114421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12288, while the sum is 31.

Adding to 243414114421 its reverse (124411414342), we get a palindrome (367825528763).

The spelling of 243414114421 in words is "two hundred forty-three billion, four hundred fourteen million, one hundred fourteen thousand, four hundred twenty-one".