121230121097 has 2 divisors, whose sum is σ = 121230121098. Its totient is φ = 121230121096.

The previous prime is 121230121093. The next prime is 121230121121. The reversal of 121230121097 is 790121032121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115064102521 + 6166018576 = 339211^2 + 78524^2 .

It is a cyclic number.

It is not a de Polignac number, because 121230121097 - 2² = 121230121093 is a prime.

It is a super-2 number, since 2×121230121097² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121230121093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60615060548 + 60615060549.

It is an arithmetic number, because the mean of its divisors is an integer number (60615060549).

Almost surely, 2^121230121097 is an apocalyptic number.

It is an amenable number.

121230121097 is a deficient number, since it is larger than the sum of its proper divisors (1).

121230121097 is an equidigital number, since it uses as much as digits as its factorization.

121230121097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 29.

The spelling of 121230121097 in words is "one hundred twenty-one billion, two hundred thirty million, one hundred twenty-one thousand, ninety-seven".