121244340433 has 2 divisors, whose sum is σ = 121244340434. Its totient is φ = 121244340432.

The previous prime is 121244340421. The next prime is 121244340487. The reversal of 121244340433 is 334043442121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120969709249 + 274631184 = 347807^2 + 16572^2 .

It is an emirp because it is prime and its reverse (334043442121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121244340433 - 2¹³ = 121244332241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121244340395 and 121244340404.

It is not a weakly prime, because it can be changed into another prime (121244343433) 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, 60622170216 + 60622170217.

It is an arithmetic number, because the mean of its divisors is an integer number (60622170217).

Almost surely, 2^121244340433 is an apocalyptic number.

It is an amenable number.

121244340433 is a deficient number, since it is larger than the sum of its proper divisors (1).

121244340433 is an equidigital number, since it uses as much as digits as its factorization.

121244340433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 121244340433 its reverse (334043442121), we get a palindrome (455287782554).

The spelling of 121244340433 in words is "one hundred twenty-one billion, two hundred forty-four million, three hundred forty thousand, four hundred thirty-three".