70343424121 has 2 divisors, whose sum is σ = 70343424122. Its totient is φ = 70343424120.

The previous prime is 70343424119. The next prime is 70343424149. The reversal of 70343424121 is 12142434307.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50597553721 + 19745870400 = 224939^2 + 140520^2 .

It is an emirp because it is prime and its reverse (12142434307) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70343424121 - 2¹ = 70343424119 is a prime.

Together with 70343424119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (70343424161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35171712060 + 35171712061.

It is an arithmetic number, because the mean of its divisors is an integer number (35171712061).

Almost surely, 2^70343424121 is an apocalyptic number.

It is an amenable number.

70343424121 is a deficient number, since it is larger than the sum of its proper divisors (1).

70343424121 is an equidigital number, since it uses as much as digits as its factorization.

70343424121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 31.

Adding to 70343424121 its reverse (12142434307), we get a palindrome (82485858428).

The spelling of 70343424121 in words is "seventy billion, three hundred forty-three million, four hundred twenty-four thousand, one hundred twenty-one".