121241017043 has 2 divisors, whose sum is σ = 121241017044. Its totient is φ = 121241017042.

The previous prime is 121241017039. The next prime is 121241017067. The reversal of 121241017043 is 340710142121.

It is a weak prime.

It is an emirp because it is prime and its reverse (340710142121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121241017043 - 2² = 121241017039 is a prime.

It is not a weakly prime, because it can be changed into another prime (121241017003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60620508521 + 60620508522.

It is an arithmetic number, because the mean of its divisors is an integer number (60620508522).

Almost surely, 2^121241017043 is an apocalyptic number.

121241017043 is a deficient number, since it is larger than the sum of its proper divisors (1).

121241017043 is an equidigital number, since it uses as much as digits as its factorization.

121241017043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 26.

Adding to 121241017043 its reverse (340710142121), we get a palindrome (461951159164).

The spelling of 121241017043 in words is "one hundred twenty-one billion, two hundred forty-one million, seventeen thousand, forty-three".