1201003003 has 2 divisors, whose sum is σ = 1201003004. Its totient is φ = 1201003002.

The previous prime is 1201002967. The next prime is 1201003031. The reversal of 1201003003 is 3003001021.

It is a strong prime.

It is an emirp because it is prime and its reverse (3003001021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1201003003 - 2²⁵ = 1167448571 is a prime.

1201003003 is a modest number, since divided by 3003 gives 1201 as remainder.

It is not a weakly prime, because it can be changed into another prime (1201003043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600501501 + 600501502.

It is an arithmetic number, because the mean of its divisors is an integer number (600501502).

Almost surely, 2^1201003003 is an apocalyptic number.

1201003003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201003003 is an equidigital number, since it uses as much as digits as its factorization.

1201003003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 1201003003 is about 34655.4902288223. The cubic root of 1201003003 is about 1062.9545561027.

Adding to 1201003003 its reverse (3003001021), we get a palindrome (4204004024).

The spelling of 1201003003 in words is "one billion, two hundred one million, three thousand, three".