121030542042343 has 2 divisors, whose sum is σ = 121030542042344. Its totient is φ = 121030542042342.

The previous prime is 121030542042287. The next prime is 121030542042439. The reversal of 121030542042343 is 343240245030121.

It is a weak prime.

It is an emirp because it is prime and its reverse (343240245030121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121030542042343 - 2¹³ = 121030542034151 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121030542042299 and 121030542042308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121030542942343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60515271021171 + 60515271021172.

It is an arithmetic number, because the mean of its divisors is an integer number (60515271021172).

Almost surely, 2^{121030542042343} is an apocalyptic number.

121030542042343 is a deficient number, since it is larger than the sum of its proper divisors (1).

121030542042343 is an equidigital number, since it uses as much as digits as its factorization.

121030542042343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 121030542042343 its reverse (343240245030121), we get a palindrome (464270787072464).

The spelling of 121030542042343 in words is "one hundred twenty-one trillion, thirty billion, five hundred forty-two million, forty-two thousand, three hundred forty-three".