121005697 has 2 divisors, whose sum is σ = 121005698. Its totient is φ = 121005696.

The previous prime is 121005671. The next prime is 121005707. The reversal of 121005697 is 796500121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73685056 + 47320641 = 8584^2 + 6879^2 .

It is a cyclic number.

It is not a de Polignac number, because 121005697 - 2¹⁹ = 120481409 is a prime.

It is a super-3 number, since 3×121005697³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (121005097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60502848 + 60502849.

It is an arithmetic number, because the mean of its divisors is an integer number (60502849).

Almost surely, 2^121005697 is an apocalyptic number.

It is an amenable number.

121005697 is a deficient number, since it is larger than the sum of its proper divisors (1).

121005697 is an equidigital number, since it uses as much as digits as its factorization.

121005697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 121005697 is about 11000.2589514975. The cubic root of 121005697 is about 494.6165066990.

The spelling of 121005697 in words is "one hundred twenty-one million, five thousand, six hundred ninety-seven".