121013003 has 2 divisors, whose sum is σ = 121013004. Its totient is φ = 121013002.

The previous prime is 121012979. The next prime is 121013047. The reversal of 121013003 is 300310121.

It is a weak prime.

It is an emirp because it is prime and its reverse (300310121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121013003 is a prime.

It is not a weakly prime, because it can be changed into another prime (121013083) 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, 60506501 + 60506502.

It is an arithmetic number, because the mean of its divisors is an integer number (60506502).

Almost surely, 2^121013003 is an apocalyptic number.

121013003 is a deficient number, since it is larger than the sum of its proper divisors (1).

121013003 is an equidigital number, since it uses as much as digits as its factorization.

121013003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 121013003 is about 11000.5910295765. The cubic root of 121013003 is about 494.6264610387.

Adding to 121013003 its reverse (300310121), we get a palindrome (421323124).

The spelling of 121013003 in words is "one hundred twenty-one million, thirteen thousand, three".