121371203 has 2 divisors, whose sum is σ = 121371204. Its totient is φ = 121371202.

The previous prime is 121371197. The next prime is 121371223. The reversal of 121371203 is 302173121.

It is an a-pointer prime, because the next prime (121371223) can be obtained adding 121371203 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121371203 - 2¹² = 121367107 is a prime.

It is not a weakly prime, because it can be changed into another prime (121371223) 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, 60685601 + 60685602.

It is an arithmetic number, because the mean of its divisors is an integer number (60685602).

Almost surely, 2^121371203 is an apocalyptic number.

121371203 is a deficient number, since it is larger than the sum of its proper divisors (1).

121371203 is an equidigital number, since it uses as much as digits as its factorization.

121371203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 121371203 is about 11016.8599428331. The cubic root of 121371203 is about 495.1140138010.

The spelling of 121371203 in words is "one hundred twenty-one million, three hundred seventy-one thousand, two hundred three".