121105450043 has 2 divisors, whose sum is σ = 121105450044. Its totient is φ = 121105450042.

The previous prime is 121105450021. The next prime is 121105450049. The reversal of 121105450043 is 340054501121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121105450043 - 2¹⁶ = 121105384507 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121105449994 and 121105450021.

It is not a weakly prime, because it can be changed into another prime (121105450049) 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, 60552725021 + 60552725022.

It is an arithmetic number, because the mean of its divisors is an integer number (60552725022).

Almost surely, 2^121105450043 is an apocalyptic number.

121105450043 is a deficient number, since it is larger than the sum of its proper divisors (1).

121105450043 is an equidigital number, since it uses as much as digits as its factorization.

121105450043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 121105450043 its reverse (340054501121), we get a palindrome (461159951164).

The spelling of 121105450043 in words is "one hundred twenty-one billion, one hundred five million, four hundred fifty thousand, forty-three".