121343302057 has 2 divisors, whose sum is σ = 121343302058. Its totient is φ = 121343302056.

The previous prime is 121343302013. The next prime is 121343302111. The reversal of 121343302057 is 750203343121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111625482816 + 9717819241 = 334104^2 + 98579^2 .

It is a cyclic number.

It is not a de Polignac number, because 121343302057 - 2²³ = 121334913449 is a prime.

It is not a weakly prime, because it can be changed into another prime (121343302657) 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, 60671651028 + 60671651029.

It is an arithmetic number, because the mean of its divisors is an integer number (60671651029).

Almost surely, 2^121343302057 is an apocalyptic number.

It is an amenable number.

121343302057 is a deficient number, since it is larger than the sum of its proper divisors (1).

121343302057 is an equidigital number, since it uses as much as digits as its factorization.

121343302057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 31.

Adding to 121343302057 its reverse (750203343121), we get a palindrome (871546645178).

The spelling of 121343302057 in words is "one hundred twenty-one billion, three hundred forty-three million, three hundred two thousand, fifty-seven".