243134320241429 has 2 divisors, whose sum is σ = 243134320241430. Its totient is φ = 243134320241428.

The previous prime is 243134320241311. The next prime is 243134320241443. The reversal of 243134320241429 is 924142023431342.

It is a happy number.

243134320241429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 240007796074225 + 3126524167204 = 15492185^2 + 1768198^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243134320241429 is a prime.

It is a super-2 number, since 2×243134320241429² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 243134320241429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243134320241459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121567160120714 + 121567160120715.

It is an arithmetic number, because the mean of its divisors is an integer number (121567160120715).

Almost surely, 2^{243134320241429} is an apocalyptic number.

It is an amenable number.

243134320241429 is a deficient number, since it is larger than the sum of its proper divisors (1).

243134320241429 is an equidigital number, since it uses as much as digits as its factorization.

243134320241429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 995328, while the sum is 44.

The spelling of 243134320241429 in words is "two hundred forty-three trillion, one hundred thirty-four billion, three hundred twenty million, two hundred forty-one thousand, four hundred twenty-nine".