243320124419 has 2 divisors, whose sum is σ = 243320124420. Its totient is φ = 243320124418.

The previous prime is 243320124413. The next prime is 243320124461. The reversal of 243320124419 is 914421023342.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243320124419 is a prime.

It is a super-2 number, since 2×243320124419² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (243320124413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121660062209 + 121660062210.

It is an arithmetic number, because the mean of its divisors is an integer number (121660062210).

Almost surely, 2^243320124419 is an apocalyptic number.

243320124419 is a deficient number, since it is larger than the sum of its proper divisors (1).

243320124419 is an equidigital number, since it uses as much as digits as its factorization.

243320124419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 243320124419 in words is "two hundred forty-three billion, three hundred twenty million, one hundred twenty-four thousand, four hundred nineteen".