121321363 has 2 divisors, whose sum is σ = 121321364. Its totient is φ = 121321362.

The previous prime is 121321357. The next prime is 121321373. The reversal of 121321363 is 363123121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121321363 - 2¹⁷ = 121190291 is a prime.

It is not a weakly prime, because it can be changed into another prime (121321373) 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, 60660681 + 60660682.

It is an arithmetic number, because the mean of its divisors is an integer number (60660682).

Almost surely, 2^121321363 is an apocalyptic number.

121321363 is a deficient number, since it is larger than the sum of its proper divisors (1).

121321363 is an equidigital number, since it uses as much as digits as its factorization.

121321363 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 22.

The square root of 121321363 is about 11014.5977230219. The cubic root of 121321363 is about 495.0462331404.

Adding to 121321363 its reverse (363123121), we get a palindrome (484444484).

The spelling of 121321363 in words is "one hundred twenty-one million, three hundred twenty-one thousand, three hundred sixty-three".