121034209 has 2 divisors, whose sum is σ = 121034210. Its totient is φ = 121034208.

The previous prime is 121034171. The next prime is 121034267. The reversal of 121034209 is 902430121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118048225 + 2985984 = 10865^2 + 1728^2 .

It is a cyclic number.

It is not a de Polignac number, because 121034209 - 2¹¹ = 121032161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121034209.

It is not a weakly prime, because it can be changed into another prime (121034279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60517104 + 60517105.

It is an arithmetic number, because the mean of its divisors is an integer number (60517105).

Almost surely, 2^121034209 is an apocalyptic number.

It is an amenable number.

121034209 is a deficient number, since it is larger than the sum of its proper divisors (1).

121034209 is an equidigital number, since it uses as much as digits as its factorization.

121034209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 121034209 is about 11001.5548446572. The cubic root of 121034209 is about 494.6553516974.

The spelling of 121034209 in words is "one hundred twenty-one million, thirty-four thousand, two hundred nine".