121302263 has 2 divisors, whose sum is σ = 121302264. Its totient is φ = 121302262.

The previous prime is 121302239. The next prime is 121302277. The reversal of 121302263 is 362203121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121302263 - 2¹² = 121298167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121308263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60651131 + 60651132.

It is an arithmetic number, because the mean of its divisors is an integer number (60651132).

Almost surely, 2^121302263 is an apocalyptic number.

121302263 is a deficient number, since it is larger than the sum of its proper divisors (1).

121302263 is an equidigital number, since it uses as much as digits as its factorization.

121302263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 121302263 is about 11013.7306576836. The cubic root of 121302263 is about 495.0202528870.

Adding to 121302263 its reverse (362203121), we get a palindrome (483505384).

The spelling of 121302263 in words is "one hundred twenty-one million, three hundred two thousand, two hundred sixty-three".