121025017 has 2 divisors, whose sum is σ = 121025018. Its totient is φ = 121025016.

The previous prime is 121024997. The next prime is 121025027. The reversal of 121025017 is 710520121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84107241 + 36917776 = 9171^2 + 6076^2 .

It is a cyclic number.

It is not a de Polignac number, because 121025017 - 2²³ = 112636409 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 121024985 and 121025003.

It is not a weakly prime, because it can be changed into another prime (121025027) 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, 60512508 + 60512509.

It is an arithmetic number, because the mean of its divisors is an integer number (60512509).

Almost surely, 2^121025017 is an apocalyptic number.

It is an amenable number.

121025017 is a deficient number, since it is larger than the sum of its proper divisors (1).

121025017 is an equidigital number, since it uses as much as digits as its factorization.

121025017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 121025017 is about 11001.1370775934. The cubic root of 121025017 is about 494.6428291025.

Adding to 121025017 its reverse (710520121), we get a palindrome (831545138).

The spelling of 121025017 in words is "one hundred twenty-one million, twenty-five thousand, seventeen".