121024213 has 2 divisors, whose sum is σ = 121024214. Its totient is φ = 121024212.

The previous prime is 121024193. The next prime is 121024223. The reversal of 121024213 is 312420121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117115684 + 3908529 = 10822^2 + 1977^2 .

It is a cyclic number.

It is not a de Polignac number, because 121024213 - 2⁵ = 121024181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121024223) 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, 60512106 + 60512107.

It is an arithmetic number, because the mean of its divisors is an integer number (60512107).

Almost surely, 2^121024213 is an apocalyptic number.

It is an amenable number.

121024213 is a deficient number, since it is larger than the sum of its proper divisors (1).

121024213 is an equidigital number, since it uses as much as digits as its factorization.

121024213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 121024213 is about 11001.1005358555. The cubic root of 121024213 is about 494.6417337540.

Adding to 121024213 its reverse (312420121), we get a palindrome (433444334).

The spelling of 121024213 in words is "one hundred twenty-one million, twenty-four thousand, two hundred thirteen".