1203003013 has 2 divisors, whose sum is σ = 1203003014. Its totient is φ = 1203003012.

The previous prime is 1203002987. The next prime is 1203003029. The reversal of 1203003013 is 3103003021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 758341444 + 444661569 = 27538^2 + 21087^2 .

It is an emirp because it is prime and its reverse (3103003021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1203003013 - 2²¹ = 1200905861 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1203002984 and 1203003002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1203003313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601501506 + 601501507.

It is an arithmetic number, because the mean of its divisors is an integer number (601501507).

Almost surely, 2^1203003013 is an apocalyptic number.

It is an amenable number.

1203003013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203003013 is an equidigital number, since it uses as much as digits as its factorization.

1203003013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 1203003013 is about 34684.3338266717. Note that the first 3 decimals coincide. The cubic root of 1203003013 is about 1063.5442689624.

Adding to 1203003013 its reverse (3103003021), we get a palindrome (4306006034).

The spelling of 1203003013 in words is "one billion, two hundred three million, three thousand, thirteen".