340121545243 has 2 divisors, whose sum is σ = 340121545244. Its totient is φ = 340121545242.

The previous prime is 340121545217. The next prime is 340121545273. The reversal of 340121545243 is 342545121043.

It is a weak prime.

It is an emirp because it is prime and its reverse (342545121043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340121545243 - 2⁹ = 340121544731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 340121545199 and 340121545208.

It is not a weakly prime, because it can be changed into another prime (340121545213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170060772621 + 170060772622.

It is an arithmetic number, because the mean of its divisors is an integer number (170060772622).

Almost surely, 2^340121545243 is an apocalyptic number.

340121545243 is a deficient number, since it is larger than the sum of its proper divisors (1).

340121545243 is an equidigital number, since it uses as much as digits as its factorization.

340121545243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 340121545243 its reverse (342545121043), we get a palindrome (682666666286).

The spelling of 340121545243 in words is "three hundred forty billion, one hundred twenty-one million, five hundred forty-five thousand, two hundred forty-three".