121280603 has 2 divisors, whose sum is σ = 121280604. Its totient is φ = 121280602.

The previous prime is 121280573. The next prime is 121280647. The reversal of 121280603 is 306082121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121280603 - 2¹⁶ = 121215067 is a prime.

It is not a weakly prime, because it can be changed into another prime (121280303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60640301 + 60640302.

It is an arithmetic number, because the mean of its divisors is an integer number (60640302).

Almost surely, 2^121280603 is an apocalyptic number.

121280603 is a deficient number, since it is larger than the sum of its proper divisors (1).

121280603 is an equidigital number, since it uses as much as digits as its factorization.

121280603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 121280603 is about 11012.7472957478. The cubic root of 121280603 is about 494.9907871632.

The spelling of 121280603 in words is "one hundred twenty-one million, two hundred eighty thousand, six hundred three".