121030001 has 2 divisors, whose sum is σ = 121030002. Its totient is φ = 121030000.

The previous prime is 121029977. The next prime is 121030031. The reversal of 121030001 is 100030121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96040000 + 24990001 = 9800^2 + 4999^2 .

It is an emirp because it is prime and its reverse (100030121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121030001 - 2²⁶ = 53921137 is a prime.

It is a super-2 number, since 2×121030001² = 29296522284120002, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (121030031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60515000 + 60515001.

It is an arithmetic number, because the mean of its divisors is an integer number (60515001).

Almost surely, 2^121030001 is an apocalyptic number.

It is an amenable number.

121030001 is a deficient number, since it is larger than the sum of its proper divisors (1).

121030001 is an equidigital number, since it uses as much as digits as its factorization.

121030001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 121030001 is about 11001.3635973001. The cubic root of 121030001 is about 494.6496190652.

Adding to 121030001 its reverse (100030121), we get a palindrome (221060122).

The spelling of 121030001 in words is "one hundred twenty-one million, thirty thousand, one".