121244003 has 2 divisors, whose sum is σ = 121244004. Its totient is φ = 121244002.

The previous prime is 121243999. The next prime is 121244029. The reversal of 121244003 is 300442121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121244003 - 2² = 121243999 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (121244303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60622001 + 60622002.

It is an arithmetic number, because the mean of its divisors is an integer number (60622002).

Almost surely, 2^121244003 is an apocalyptic number.

121244003 is a deficient number, since it is larger than the sum of its proper divisors (1).

121244003 is an equidigital number, since it uses as much as digits as its factorization.

121244003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 121244003 is about 11011.0854596629. The cubic root of 121244003 is about 494.9409894624.

Adding to 121244003 its reverse (300442121), we get a palindrome (421686124).

The spelling of 121244003 in words is "one hundred twenty-one million, two hundred forty-four thousand, three".