121352023993 has 2 divisors, whose sum is σ = 121352023994. Its totient is φ = 121352023992.

The previous prime is 121352023981. The next prime is 121352024029. The reversal of 121352023993 is 399320253121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67045780624 + 54306243369 = 258932^2 + 233037^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121352023993 is a prime.

It is not a weakly prime, because it can be changed into another prime (121352023973) 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, 60676011996 + 60676011997.

It is an arithmetic number, because the mean of its divisors is an integer number (60676011997).

Almost surely, 2^121352023993 is an apocalyptic number.

It is an amenable number.

121352023993 is a deficient number, since it is larger than the sum of its proper divisors (1).

121352023993 is an equidigital number, since it uses as much as digits as its factorization.

121352023993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87480, while the sum is 40.

The spelling of 121352023993 in words is "one hundred twenty-one billion, three hundred fifty-two million, twenty-three thousand, nine hundred ninety-three".