121230542597 has 2 divisors, whose sum is σ = 121230542598. Its totient is φ = 121230542596.

The previous prime is 121230542593. The next prime is 121230542633. The reversal of 121230542597 is 795245032121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103240758721 + 17989783876 = 321311^2 + 134126^2 .

It is a cyclic number.

It is not a de Polignac number, because 121230542597 - 2² = 121230542593 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121230542593) 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, 60615271298 + 60615271299.

It is an arithmetic number, because the mean of its divisors is an integer number (60615271299).

Almost surely, 2^121230542597 is an apocalyptic number.

It is an amenable number.

121230542597 is a deficient number, since it is larger than the sum of its proper divisors (1).

121230542597 is an equidigital number, since it uses as much as digits as its factorization.

121230542597 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 121230542597 in words is "one hundred twenty-one billion, two hundred thirty million, five hundred forty-two thousand, five hundred ninety-seven".